diff --git a/include/SDL.h b/include/SDL.h
index 222a8bd99..07d3356bf 100644
--- a/include/SDL.h
+++ b/include/SDL.h
@@ -132,6 +132,8 @@ extern "C" {
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_InitSubSystem
  * \sa SDL_Quit
  * \sa SDL_SetMainReady
@@ -148,6 +150,8 @@ extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Init
  * \sa SDL_Quit
  * \sa SDL_QuitSubSystem
@@ -169,6 +173,8 @@ extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags);
  *
  * \param flags any of the flags used by SDL_Init(); see SDL_Init for details.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_InitSubSystem
  * \sa SDL_Quit
  */
@@ -183,6 +189,8 @@ extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags);
  *
  *          The return value does not include SDL_INIT_NOPARACHUTE.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Init
  * \sa SDL_InitSubSystem
  */
@@ -205,6 +213,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags);
  * application is shutdown, but it is not wise to do this from a library or
  * other dynamically loaded code.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Init
  * \sa SDL_QuitSubSystem
  */
diff --git a/include/SDL_assert.h b/include/SDL_assert.h
index a627b1786..4c2099302 100644
--- a/include/SDL_assert.h
+++ b/include/SDL_assert.h
@@ -217,6 +217,8 @@ typedef SDL_AssertState (SDLCALL *SDL_AssertionHandler)(
  *                fails or NULL for the default handler
  * \param userdata a pointer that is passed to `handler`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetAssertionHandler
  */
 extern DECLSPEC void SDLCALL SDL_SetAssertionHandler(
@@ -285,6 +287,8 @@ extern DECLSPEC SDL_AssertionHandler SDLCALL SDL_GetAssertionHandler(void **puse
  * \returns a list of all failed assertions or NULL if the list is empty. This
  *          memory should not be modified or freed by the application.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ResetAssertionReport
  */
 extern DECLSPEC const SDL_AssertData * SDLCALL SDL_GetAssertionReport(void);
@@ -297,6 +301,8 @@ extern DECLSPEC const SDL_AssertData * SDLCALL SDL_GetAssertionReport(void);
  * no items. In addition, any previously-triggered assertions will be reset to
  * a trigger_count of zero, and their always_ignore state will be false.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetAssertionReport
  */
 extern DECLSPEC void SDLCALL SDL_ResetAssertionReport(void);
diff --git a/include/SDL_atomic.h b/include/SDL_atomic.h
index 5e1eae773..db0dbe95d 100644
--- a/include/SDL_atomic.h
+++ b/include/SDL_atomic.h
@@ -98,6 +98,8 @@ typedef int SDL_SpinLock;
  * \returns SDL_TRUE if the lock succeeded, SDL_FALSE if the lock is already
  *          held.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AtomicLock
  * \sa SDL_AtomicUnlock
  */
@@ -111,6 +113,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_AtomicTryLock(SDL_SpinLock *lock);
  *
  * \param lock a pointer to a lock variable
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AtomicTryLock
  * \sa SDL_AtomicUnlock
  */
@@ -173,6 +177,8 @@ extern _inline void SDL_CompilerBarrier (void);
  *
  * For more information on these semantics, take a look at the blog post:
  * http://preshing.com/20120913/acquire-and-release-semantics
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC void SDLCALL SDL_MemoryBarrierReleaseFunction(void);
 extern DECLSPEC void SDLCALL SDL_MemoryBarrierAcquireFunction(void);
@@ -268,6 +274,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCAS(SDL_atomic_t *a, int oldval, int
  * \param v the desired value
  * \returns the previous value of the atomic variable.
  *
+ * \since This function is available since SDL 2.0.2.
+ *
  * \sa SDL_AtomicGet
  */
 extern DECLSPEC int SDLCALL SDL_AtomicSet(SDL_atomic_t *a, int v);
@@ -281,6 +289,8 @@ extern DECLSPEC int SDLCALL SDL_AtomicSet(SDL_atomic_t *a, int v);
  * \param a a pointer to an SDL_atomic_t variable
  * \returns the current value of an atomic variable.
  *
+ * \since This function is available since SDL 2.0.2.
+ *
  * \sa SDL_AtomicSet
  */
 extern DECLSPEC int SDLCALL SDL_AtomicGet(SDL_atomic_t *a);
@@ -297,6 +307,8 @@ extern DECLSPEC int SDLCALL SDL_AtomicGet(SDL_atomic_t *a);
  * \param v the desired value to add
  * \returns the previous value of the atomic variable.
  *
+ * \since This function is available since SDL 2.0.2.
+ *
  * \sa SDL_AtomicDecRef
  * \sa SDL_AtomicIncRef
  */
@@ -348,6 +360,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_AtomicCASPtr(void **a, void *oldval, void *
  * \param v the desired pointer value
  * \returns the previous value of the pointer.
  *
+ * \since This function is available since SDL 2.0.2.
+ *
  * \sa SDL_AtomicCASPtr
  * \sa SDL_AtomicGetPtr
  */
@@ -362,6 +376,8 @@ extern DECLSPEC void* SDLCALL SDL_AtomicSetPtr(void **a, void* v);
  * \param a a pointer to a pointer
  * \returns the current value of a pointer.
  *
+ * \since This function is available since SDL 2.0.2.
+ *
  * \sa SDL_AtomicCASPtr
  * \sa SDL_AtomicSetPtr
  */
diff --git a/include/SDL_audio.h b/include/SDL_audio.h
index dd815d031..7bfb2daa1 100644
--- a/include/SDL_audio.h
+++ b/include/SDL_audio.h
@@ -291,6 +291,8 @@ extern DECLSPEC int SDLCALL SDL_GetNumAudioDrivers(void);
  * \returns the name of the audio driver at the requested index, or NULL if an
  *          invalid index was specified.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetNumAudioDrivers
  */
 extern DECLSPEC const char *SDLCALL SDL_GetAudioDriver(int index);
@@ -316,6 +318,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetAudioDriver(int index);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AudioQuit
  */
 extern DECLSPEC int SDLCALL SDL_AudioInit(const char *driver_name);
@@ -328,6 +332,8 @@ extern DECLSPEC int SDLCALL SDL_AudioInit(const char *driver_name);
  * specific need to specify the audio driver you want to use. You should
  * normally use SDL_Quit() or SDL_QuitSubSystem().
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AudioInit
  */
 extern DECLSPEC void SDLCALL SDL_AudioQuit(void);
@@ -391,6 +397,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetCurrentAudioDriver(void);
  *          audio device or failure to set up the audio thread; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CloseAudio
  * \sa SDL_LockAudio
  * \sa SDL_PauseAudio
@@ -476,6 +484,8 @@ extern DECLSPEC int SDLCALL SDL_GetNumAudioDevices(int iscapture);
  * \returns the name of the audio device at the requested index, or NULL on
  *          error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetNumAudioDevices
  */
 extern DECLSPEC const char *SDLCALL SDL_GetAudioDeviceName(int index,
@@ -656,6 +666,8 @@ typedef enum
  *
  * \returns the SDL_AudioStatus of the audio device opened by SDL_OpenAudio().
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetAudioDeviceStatus
  */
 extern DECLSPEC SDL_AudioStatus SDLCALL SDL_GetAudioStatus(void);
@@ -667,6 +679,8 @@ extern DECLSPEC SDL_AudioStatus SDLCALL SDL_GetAudioStatus(void);
  *            SDL_OpenAudioDevice()
  * \returns the SDL_AudioStatus of the specified audio device.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PauseAudioDevice
  */
 extern DECLSPEC SDL_AudioStatus SDLCALL SDL_GetAudioDeviceStatus(SDL_AudioDeviceID dev);
@@ -697,6 +711,8 @@ extern DECLSPEC SDL_AudioStatus SDLCALL SDL_GetAudioDeviceStatus(SDL_AudioDevice
  *
  * \param pause_on non-zero to pause, 0 to unpause
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetAudioStatus
  * \sa SDL_PauseAudioDevice
  */
@@ -726,6 +742,8 @@ extern DECLSPEC void SDLCALL SDL_PauseAudio(int pause_on);
  * \param dev a device opened by SDL_OpenAudioDevice()
  * \param pause_on non-zero to pause, 0 to unpause
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LockAudioDevice
  */
 extern DECLSPEC void SDLCALL SDL_PauseAudioDevice(SDL_AudioDeviceID dev,
@@ -808,6 +826,8 @@ extern DECLSPEC void SDLCALL SDL_PauseAudioDevice(SDL_AudioDeviceID dev,
  *          When the application is done with the data returned in
  *          `audio_buf`, it should call SDL_FreeWAV() to dispose of it.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FreeWAV
  * \sa SDL_LoadWAV
  */
@@ -834,6 +854,8 @@ extern DECLSPEC SDL_AudioSpec *SDLCALL SDL_LoadWAV_RW(SDL_RWops * src,
  * \param audio_buf a pointer to the buffer created by SDL_LoadWAV() or
  *                  SDL_LoadWAV_RW()
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LoadWAV
  * \sa SDL_LoadWAV_RW
  */
@@ -867,6 +889,8 @@ extern DECLSPEC void SDLCALL SDL_FreeWAV(Uint8 * audio_buf);
  *          or a negative error code on failure; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ConvertAudio
  */
 extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
@@ -911,6 +935,8 @@ extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
  * \returns 0 if the conversion was completed successfully or a negative error
  *          code on failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BuildAudioCVT
  */
 extern DECLSPEC int SDLCALL SDL_ConvertAudio(SDL_AudioCVT * cvt);
@@ -937,6 +963,8 @@ typedef struct _SDL_AudioStream SDL_AudioStream;
  * \param dst_rate The sampling rate of the desired audio output
  * \returns 0 on success, or -1 on error.
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_AudioStreamPut
  * \sa SDL_AudioStreamGet
  * \sa SDL_AudioStreamAvailable
@@ -959,6 +987,8 @@ extern DECLSPEC SDL_AudioStream * SDLCALL SDL_NewAudioStream(const SDL_AudioForm
  * \param len The number of bytes to write to the stream
  * \returns 0 on success, or -1 on error.
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_NewAudioStream
  * \sa SDL_AudioStreamGet
  * \sa SDL_AudioStreamAvailable
@@ -976,6 +1006,8 @@ extern DECLSPEC int SDLCALL SDL_AudioStreamPut(SDL_AudioStream *stream, const vo
  * \param len The maximum number of bytes to fill
  * \returns the number of bytes read from the stream, or -1 on error
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_NewAudioStream
  * \sa SDL_AudioStreamPut
  * \sa SDL_AudioStreamAvailable
@@ -992,6 +1024,8 @@ extern DECLSPEC int SDLCALL SDL_AudioStreamGet(SDL_AudioStream *stream, void *bu
  * resample correctly, so this number might be lower than what you expect, or
  * even be zero. Add more data or flush the stream if you need the data now.
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_NewAudioStream
  * \sa SDL_AudioStreamPut
  * \sa SDL_AudioStreamGet
@@ -1009,6 +1043,8 @@ extern DECLSPEC int SDLCALL SDL_AudioStreamAvailable(SDL_AudioStream *stream);
  * audio gaps in the output. Generally this is intended to signal the end of
  * input, so the complete output becomes available.
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_NewAudioStream
  * \sa SDL_AudioStreamPut
  * \sa SDL_AudioStreamGet
@@ -1021,6 +1057,8 @@ extern DECLSPEC int SDLCALL SDL_AudioStreamFlush(SDL_AudioStream *stream);
 /**
  * Clear any pending data in the stream without converting it
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_NewAudioStream
  * \sa SDL_AudioStreamPut
  * \sa SDL_AudioStreamGet
@@ -1033,6 +1071,8 @@ extern DECLSPEC void SDLCALL SDL_AudioStreamClear(SDL_AudioStream *stream);
 /**
  * Free an audio stream
  *
+ * \since This function is available since SDL 2.0.7.
+ *
  * \sa SDL_NewAudioStream
  * \sa SDL_AudioStreamPut
  * \sa SDL_AudioStreamGet
@@ -1062,6 +1102,8 @@ extern DECLSPEC void SDLCALL SDL_FreeAudioStream(SDL_AudioStream *stream);
  * \param volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME
  *               for full audio volume
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_MixAudioFormat
  */
 extern DECLSPEC void SDLCALL SDL_MixAudio(Uint8 * dst, const Uint8 * src,
@@ -1094,6 +1136,8 @@ extern DECLSPEC void SDLCALL SDL_MixAudio(Uint8 * dst, const Uint8 * src,
  * \param len the length of the audio buffer in bytes
  * \param volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME
  *               for full audio volume
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_MixAudioFormat(Uint8 * dst,
                                                 const Uint8 * src,
@@ -1287,6 +1331,8 @@ extern DECLSPEC void SDLCALL SDL_ClearQueuedAudio(SDL_AudioDeviceID dev);
  *
  * ...and is only useful if you used the legacy SDL_OpenAudio() function.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LockAudioDevice
  * \sa SDL_UnlockAudio
  * \sa SDL_UnlockAudioDevice
@@ -1326,6 +1372,8 @@ extern DECLSPEC void SDLCALL SDL_LockAudio(void);
  *
  * \param dev the ID of the device to be locked
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_UnlockAudioDevice
  */
 extern DECLSPEC void SDLCALL SDL_LockAudioDevice(SDL_AudioDeviceID dev);
@@ -1342,6 +1390,8 @@ extern DECLSPEC void SDLCALL SDL_LockAudioDevice(SDL_AudioDeviceID dev);
  *
  * ...and is only useful if you used the legacy SDL_OpenAudio() function.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LockAudio
  * \sa SDL_UnlockAudioDevice
  */
@@ -1355,6 +1405,8 @@ extern DECLSPEC void SDLCALL SDL_UnlockAudio(void);
  *
  * \param dev the ID of the device to be unlocked
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LockAudioDevice
  */
 extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
@@ -1371,6 +1423,8 @@ extern DECLSPEC void SDLCALL SDL_UnlockAudioDevice(SDL_AudioDeviceID dev);
  *
  * ...and is only useful if you used the legacy SDL_OpenAudio() function.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_OpenAudio
  */
 extern DECLSPEC void SDLCALL SDL_CloseAudio(void);
@@ -1393,6 +1447,8 @@ extern DECLSPEC void SDLCALL SDL_CloseAudio(void);
  *
  * \param dev an audio device previously opened with SDL_OpenAudioDevice()
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_OpenAudioDevice
  */
 extern DECLSPEC void SDLCALL SDL_CloseAudioDevice(SDL_AudioDeviceID dev);
diff --git a/include/SDL_blendmode.h b/include/SDL_blendmode.h
index 374f225a0..84e3653aa 100644
--- a/include/SDL_blendmode.h
+++ b/include/SDL_blendmode.h
@@ -175,7 +175,7 @@ typedef enum
  * \returns an SDL_BlendMode that represents the chosen factors and
  *          operations.
  *
- * \since This function is available in SDL 2.0.6.
+ * \since This function is available since SDL 2.0.6.
  *
  * \sa SDL_SetRenderDrawBlendMode
  * \sa SDL_GetRenderDrawBlendMode
diff --git a/include/SDL_clipboard.h b/include/SDL_clipboard.h
index 1ed812053..8a574ccb1 100644
--- a/include/SDL_clipboard.h
+++ b/include/SDL_clipboard.h
@@ -45,6 +45,8 @@ extern "C" {
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetClipboardText
  * \sa SDL_HasClipboardText
  */
@@ -61,6 +63,8 @@ extern DECLSPEC int SDLCALL SDL_SetClipboardText(const char *text);
  *          on the returned pointer when done with it (even if there was an
  *          error).
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HasClipboardText
  * \sa SDL_SetClipboardText
  */
diff --git a/include/SDL_cpuinfo.h b/include/SDL_cpuinfo.h
index 9b6ec7003..89cc74097 100644
--- a/include/SDL_cpuinfo.h
+++ b/include/SDL_cpuinfo.h
@@ -158,6 +158,8 @@ extern DECLSPEC int SDLCALL SDL_GetCPUCacheLineSize(void);
  *
  * \returns SDL_TRUE if the CPU has the RDTSC instruction or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -179,6 +181,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void);
  *
  * \returns SDL_TRUE if the CPU has AltiVec features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAVX
  * \sa SDL_HasAVX2
@@ -199,6 +203,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);
  *
  * \returns SDL_TRUE if the CPU has MMX features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -219,6 +225,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);
  *
  * \returns SDL_TRUE if the CPU has 3DNow! features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
  * \sa SDL_HasAVX2
@@ -239,6 +247,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);
  *
  * \returns SDL_TRUE if the CPU has SSE features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -259,6 +269,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);
  *
  * \returns SDL_TRUE if the CPU has SSE2 features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -279,6 +291,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);
  *
  * \returns SDL_TRUE if the CPU has SSE3 features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -299,6 +313,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE3(void);
  *
  * \returns SDL_TRUE if the CPU has SSE4.1 features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -319,6 +335,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE41(void);
  *
  * \returns SDL_TRUE if the CPU has SSE4.2 features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Has3DNow
  * \sa SDL_HasAltiVec
  * \sa SDL_HasAVX
@@ -383,6 +401,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX2(void);
  *
  * \returns SDL_TRUE if the CPU has AVX-512F features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.9.
+ *
  * \sa SDL_HasAVX
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX512F(void);
@@ -396,6 +416,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasAVX512F(void);
  *
  * \returns SDL_TRUE if the CPU has ARM SIMD features or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_HasNEON
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_HasARMSIMD(void);
@@ -406,6 +428,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasARMSIMD(void);
  * This always returns false on CPUs that aren't using ARM instruction sets.
  *
  * \returns SDL_TRUE if the CPU has ARM NEON features or SDL_FALSE if not.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_HasNEON(void);
 
@@ -432,6 +456,8 @@ extern DECLSPEC int SDLCALL SDL_GetSystemRAM(void);
  *
  * \returns the alignment in bytes needed for available, known SIMD
  *          instructions.
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC size_t SDLCALL SDL_SIMDGetAlignment(void);
 
@@ -466,6 +492,8 @@ extern DECLSPEC size_t SDLCALL SDL_SIMDGetAlignment(void);
  *            allocated block might be larger due to padding, etc.
  * \returns a pointer to the newly-allocated block, NULL if out of memory.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_SIMDAlignment
  * \sa SDL_SIMDRealloc
  * \sa SDL_SIMDFree
@@ -488,6 +516,8 @@ extern DECLSPEC void * SDLCALL SDL_SIMDAlloc(const size_t len);
  *            memory.
  * \returns a pointer to the newly-reallocated block, NULL if out of memory.
  *
+ * \since This function is available since SDL 2.0.14.
+ *
  * \sa SDL_SIMDAlignment
  * \sa SDL_SIMDAlloc
  * \sa SDL_SIMDFree
@@ -511,6 +541,8 @@ extern DECLSPEC void * SDLCALL SDL_SIMDRealloc(void *mem, const size_t len);
  * \param ptr The pointer, returned from SDL_SIMDAlloc or SDL_SIMDRealloc, to
  *            deallocate. NULL is a legal no-op.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_SIMDAlloc
  * \sa SDL_SIMDRealloc
  */
diff --git a/include/SDL_error.h b/include/SDL_error.h
index acdf3f6ba..33277c50b 100644
--- a/include/SDL_error.h
+++ b/include/SDL_error.h
@@ -58,6 +58,8 @@ extern "C" {
  *            any
  * \returns always -1.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ClearError
  * \sa SDL_GetError
  */
@@ -93,6 +95,8 @@ extern DECLSPEC int SDLCALL SDL_SetError(SDL_PRINTF_FORMAT_STRING const char *fm
  *          return values of SDL function calls to determine when to
  *          appropriately call SDL_GetError().
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ClearError
  * \sa SDL_SetError
  */
@@ -109,6 +113,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetError(void);
  * \param maxlen The size of the buffer pointed to by the errstr parameter
  * \returns the pointer passed in as the `errstr` parameter.
  *
+ * \since This function is available since SDL 2.0.14.
+ *
  * \sa SDL_GetError
  */
 extern DECLSPEC char * SDLCALL SDL_GetErrorMsg(char *errstr, int maxlen);
@@ -116,6 +122,8 @@ extern DECLSPEC char * SDLCALL SDL_GetErrorMsg(char *errstr, int maxlen);
 /**
  * Clear any previous error message for this thread.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetError
  * \sa SDL_SetError
  */
diff --git a/include/SDL_events.h b/include/SDL_events.h
index c018e3b41..9718c404a 100644
--- a/include/SDL_events.h
+++ b/include/SDL_events.h
@@ -662,6 +662,8 @@ SDL_COMPILE_TIME_ASSERT(SDL_Event, sizeof(SDL_Event) == sizeof(((SDL_Event *)NUL
  * polling or waiting for events (e.g. you are filtering them), then you must
  * call SDL_PumpEvents() to force an event queue update.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PollEvent
  * \sa SDL_WaitEvent
  */
@@ -707,6 +709,8 @@ typedef enum
  * \returns the number of events actually stored or a negative error code on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PollEvent
  * \sa SDL_PumpEvents
  * \sa SDL_PushEvent
@@ -726,6 +730,8 @@ extern DECLSPEC int SDLCALL SDL_PeepEvents(SDL_Event * events, int numevents,
  * \returns SDL_TRUE if events matching `type` are present, or SDL_FALSE if
  *          events matching `type` are not present.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HasEvents
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_HasEvent(Uint32 type);
@@ -743,6 +749,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasEvent(Uint32 type);
  * \returns SDL_TRUE if events with type >= `minType` and <= `maxType` are
  *          present, or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HasEvents
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_HasEvents(Uint32 minType, Uint32 maxType);
@@ -763,6 +771,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasEvents(Uint32 minType, Uint32 maxType);
  *
  * \param type the type of event to be cleared; see SDL_EventType for details
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FlushEvents
  */
 extern DECLSPEC void SDLCALL SDL_FlushEvent(Uint32 type);
@@ -786,6 +796,8 @@ extern DECLSPEC void SDLCALL SDL_FlushEvent(Uint32 type);
  * \param maxType the high end of event type to be cleared, inclusive; see
  *                SDL_EventType for details
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FlushEvent
  */
 extern DECLSPEC void SDLCALL SDL_FlushEvents(Uint32 minType, Uint32 maxType);
@@ -826,6 +838,8 @@ extern DECLSPEC void SDLCALL SDL_FlushEvents(Uint32 minType, Uint32 maxType);
  *              the queue, or NULL
  * \returns 1 if there is a pending event or 0 if there are none available.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetEventFilter
  * \sa SDL_PeepEvents
  * \sa SDL_PushEvent
@@ -849,6 +863,8 @@ extern DECLSPEC int SDLCALL SDL_PollEvent(SDL_Event * event);
  * \returns 1 on success or 0 if there was an error while waiting for events;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PollEvent
  * \sa SDL_PumpEvents
  * \sa SDL_WaitEventTimeout
@@ -873,6 +889,8 @@ extern DECLSPEC int SDLCALL SDL_WaitEvent(SDL_Event * event);
  *          call SDL_GetError() for more information. This also returns 0 if
  *          the timeout elapsed without an event arriving.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PollEvent
  * \sa SDL_PumpEvents
  * \sa SDL_WaitEvent
@@ -906,6 +924,8 @@ extern DECLSPEC int SDLCALL SDL_WaitEventTimeout(SDL_Event * event,
  *          code on failure; call SDL_GetError() for more information. A
  *          common reason for error is the event queue being full.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PeepEvents
  * \sa SDL_PollEvent
  * \sa SDL_RegisterEvents
@@ -960,6 +980,8 @@ typedef int (SDLCALL * SDL_EventFilter) (void *userdata, SDL_Event * event);
  * \param filter An SDL_EventFilter function to call when an event happens
  * \param userdata a pointer that is passed to `filter`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AddEventWatch
  * \sa SDL_EventState
  * \sa SDL_GetEventFilter
@@ -980,6 +1002,8 @@ extern DECLSPEC void SDLCALL SDL_SetEventFilter(SDL_EventFilter filter,
  *                 be stored here
  * \returns SDL_TRUE on success or SDL_FALSE if there is no event filter set.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetEventFilter
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GetEventFilter(SDL_EventFilter * filter,
@@ -1006,6 +1030,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GetEventFilter(SDL_EventFilter * filter,
  * \param filter an SDL_EventFilter function to call when an event happens.
  * \param userdata a pointer that is passed to `filter`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_DelEventWatch
  * \sa SDL_SetEventFilter
  */
@@ -1021,6 +1047,8 @@ extern DECLSPEC void SDLCALL SDL_AddEventWatch(SDL_EventFilter filter,
  * \param filter the function originally passed to SDL_AddEventWatch()
  * \param userdata the pointer originally passed to SDL_AddEventWatch()
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AddEventWatch
  */
 extern DECLSPEC void SDLCALL SDL_DelEventWatch(SDL_EventFilter filter,
@@ -1037,6 +1065,8 @@ extern DECLSPEC void SDLCALL SDL_DelEventWatch(SDL_EventFilter filter,
  * \param filter the SDL_EventFilter function to call when an event happens
  * \param userdata a pointer that is passed to `filter`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetEventFilter
  * \sa SDL_SetEventFilter
  */
@@ -1064,6 +1094,8 @@ extern DECLSPEC void SDLCALL SDL_FilterEvents(SDL_EventFilter filter,
  * \returns `SDL_DISABLE` or `SDL_ENABLE`, representing the processing state
  *          of the event before this function makes any changes to it.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetEventState
  */
 extern DECLSPEC Uint8 SDLCALL SDL_EventState(Uint32 type, int state);
diff --git a/include/SDL_gamecontroller.h b/include/SDL_gamecontroller.h
index 685bed0d7..695201e56 100644
--- a/include/SDL_gamecontroller.h
+++ b/include/SDL_gamecontroller.h
@@ -189,6 +189,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerAddMappingsFromRW(SDL_RWops * rw,
  * \returns 1 if a new mapping is added, 0 if an existing mapping is updated,
  *          -1 on error; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GameControllerMapping
  * \sa SDL_GameControllerMappingForGUID
  */
@@ -198,6 +200,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerAddMapping(const char* mappingStri
  * Get the number of mappings installed.
  *
  * \returns the number of mappings.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerNumMappings(void);
 
@@ -206,6 +210,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerNumMappings(void);
  *
  * \returns the mapping string. Must be freed with SDL_free(). Returns NULL if
  *          the index is out of range.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC char * SDLCALL SDL_GameControllerMappingForIndex(int mapping_index);
 
@@ -218,6 +224,8 @@ extern DECLSPEC char * SDLCALL SDL_GameControllerMappingForIndex(int mapping_ind
  * \returns a mapping string or NULL on error; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetDeviceGUID
  * \sa SDL_JoystickGetGUID
  */
@@ -289,6 +297,8 @@ extern DECLSPEC const char *SDLCALL SDL_GameControllerNameForIndex(int joystick_
  * \param joystick_index the device_index of a device, from zero to
  *                       SDL_NumJoysticks()-1
  * \returns the controller type.
+ *
+ * \since This function is available since SDL 2.0.12.
  */
 extern DECLSPEC SDL_GameControllerType SDLCALL SDL_GameControllerTypeForIndex(int joystick_index);
 
@@ -301,6 +311,8 @@ extern DECLSPEC SDL_GameControllerType SDLCALL SDL_GameControllerTypeForIndex(in
  *                       SDL_NumJoysticks()-1
  * \returns the mapping string. Must be freed with SDL_free(). Returns NULL if
  *          no mapping is available.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC char *SDLCALL SDL_GameControllerMappingForDeviceIndex(int joystick_index);
 
@@ -349,6 +361,8 @@ extern DECLSPEC SDL_GameController *SDLCALL SDL_GameControllerFromInstanceID(SDL
  *                     instance id!
  * \returns the SDL_GameController associated with a player index.
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_GameControllerGetPlayerIndex
  * \sa SDL_GameControllerSetPlayerIndex
  */
@@ -380,6 +394,8 @@ extern DECLSPEC const char *SDLCALL SDL_GameControllerName(SDL_GameController *g
  *
  * \param gamecontroller the game controller object to query.
  * \returns the controller type.
+ *
+ * \since This function is available since SDL 2.0.12.
  */
 extern DECLSPEC SDL_GameControllerType SDLCALL SDL_GameControllerGetType(SDL_GameController *gamecontroller);
 
@@ -390,6 +406,8 @@ extern DECLSPEC SDL_GameControllerType SDLCALL SDL_GameControllerGetType(SDL_Gam
  *
  * \param gamecontroller the game controller object to query.
  * \returns the player index for controller, or -1 if it's not available.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerGetPlayerIndex(SDL_GameController *gamecontroller);
 
@@ -398,6 +416,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerGetPlayerIndex(SDL_GameController
  *
  * \param gamecontroller the game controller object to adjust.
  * \param player_index Player index to assign to this controller.
+ *
+ * \since This function is available since SDL 2.0.12.
  */
 extern DECLSPEC void SDLCALL SDL_GameControllerSetPlayerIndex(SDL_GameController *gamecontroller, int player_index);
 
@@ -408,6 +428,8 @@ extern DECLSPEC void SDLCALL SDL_GameControllerSetPlayerIndex(SDL_GameController
  *
  * \param gamecontroller the game controller object to query.
  * \return the USB vendor ID, or zero if unavailable.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_GameControllerGetVendor(SDL_GameController *gamecontroller);
 
@@ -418,6 +440,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_GameControllerGetVendor(SDL_GameController *g
  *
  * \param gamecontroller the game controller object to query.
  * \return the USB product ID, or zero if unavailable.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_GameControllerGetProduct(SDL_GameController *gamecontroller);
 
@@ -428,6 +452,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_GameControllerGetProduct(SDL_GameController *
  *
  * \param gamecontroller the game controller object to query.
  * \return the USB product version, or zero if unavailable.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_GameControllerGetProductVersion(SDL_GameController *gamecontroller);
 
@@ -439,6 +465,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_GameControllerGetProductVersion(SDL_GameContr
  *
  * \param gamecontroller the game controller object to query.
  * \return the serial number, or NULL if unavailable.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC const char * SDLCALL SDL_GameControllerGetSerial(SDL_GameController *gamecontroller);
 
@@ -450,6 +478,8 @@ extern DECLSPEC const char * SDLCALL SDL_GameControllerGetSerial(SDL_GameControl
  * \returns SDL_TRUE if the controller has been opened and is currently
  *          connected, or SDL_FALSE if not.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GameControllerClose
  * \sa SDL_GameControllerOpen
  */
@@ -471,6 +501,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerGetAttached(SDL_GameControlle
  * \param gamecontroller the game controller object that you want to get a
  *                       joystick from
  * \returns a SDL_Joystick object; call SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_Joystick *SDLCALL SDL_GameControllerGetJoystick(SDL_GameController *gamecontroller);
 
@@ -500,6 +532,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerEventState(int state);
  * This function is called automatically by the event loop if events are
  * enabled. Under such circumstances, it will not be necessary to call this
  * function.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_GameControllerUpdate(void);
 
@@ -541,6 +575,8 @@ typedef enum
  * \returns the SDL_GameControllerAxis enum corresponding to the input string,
  *          or `SDL_CONTROLLER_AXIS_INVALID` if no match was found.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GameControllerGetStringForAxis
  */
 extern DECLSPEC SDL_GameControllerAxis SDLCALL SDL_GameControllerGetAxisFromString(const char *str);
@@ -555,6 +591,8 @@ extern DECLSPEC SDL_GameControllerAxis SDLCALL SDL_GameControllerGetAxisFromStri
  *          specified. The string returned is of the format used by
  *          SDL_GameController mapping strings.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GameControllerGetAxisFromString
  */
 extern DECLSPEC const char* SDLCALL SDL_GameControllerGetStringForAxis(SDL_GameControllerAxis axis);
@@ -585,6 +623,8 @@ SDL_GameControllerGetBindForAxis(SDL_GameController *gamecontroller,
  * \param gamecontroller a game controller
  * \param axis an axis enum value (an SDL_GameControllerAxis value)
  * \returns SDL_TRUE if the controller has this axis, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL
 SDL_GameControllerHasAxis(SDL_GameController *gamecontroller, SDL_GameControllerAxis axis);
@@ -650,6 +690,8 @@ typedef enum
  * \param str string representing a SDL_GameController axis
  * \returns the SDL_GameControllerButton enum corresponding to the input
  *          string, or `SDL_CONTROLLER_AXIS_INVALID` if no match was found.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_GameControllerButton SDLCALL SDL_GameControllerGetButtonFromString(const char *str);
 
@@ -695,6 +737,8 @@ SDL_GameControllerGetBindForButton(SDL_GameController *gamecontroller,
  * \param gamecontroller a game controller
  * \param button a button enum value (an SDL_GameControllerButton value)
  * \returns SDL_TRUE if the controller has this button, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerHasButton(SDL_GameController *gamecontroller,
                                                              SDL_GameControllerButton button);
@@ -716,17 +760,23 @@ extern DECLSPEC Uint8 SDLCALL SDL_GameControllerGetButton(SDL_GameController *ga
 
 /**
  * Get the number of touchpads on a game controller.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerGetNumTouchpads(SDL_GameController *gamecontroller);
 
 /**
  * Get the number of supported simultaneous fingers on a touchpad on a game
  * controller.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerGetNumTouchpadFingers(SDL_GameController *gamecontroller, int touchpad);
 
 /**
  * Get the current state of a finger on a touchpad on a game controller.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerGetTouchpadFinger(SDL_GameController *gamecontroller, int touchpad, int finger, Uint8 *state, float *x, float *y, float *pressure);
 
@@ -736,6 +786,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerGetTouchpadFinger(SDL_GameControll
  * \param gamecontroller The controller to query
  * \param type The type of sensor to query
  * \returns SDL_TRUE if the sensor exists, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerHasSensor(SDL_GameController *gamecontroller, SDL_SensorType type);
 
@@ -746,6 +798,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerHasSensor(SDL_GameController
  * \param type The type of sensor to enable/disable
  * \param enabled Whether data reporting should be enabled
  * \returns 0 or -1 if an error occurred.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerSetSensorEnabled(SDL_GameController *gamecontroller, SDL_SensorType type, SDL_bool enabled);
 
@@ -755,6 +809,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerSetSensorEnabled(SDL_GameControlle
  * \param gamecontroller The controller to query
  * \param type The type of sensor to query
  * \returns SDL_TRUE if the sensor is enabled, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerIsSensorEnabled(SDL_GameController *gamecontroller, SDL_SensorType type);
 
@@ -765,6 +821,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerIsSensorEnabled(SDL_GameContr
  * \param gamecontroller The controller to query
  * \param type The type of sensor to query
  * \return the data rate, or 0.0f if the data rate is not available.
+ *
+ * \since This function is available since SDL 2.0.16.
  */
 extern DECLSPEC float SDLCALL SDL_GameControllerGetSensorDataRate(SDL_GameController *gamecontroller, SDL_SensorType type);
 
@@ -779,6 +837,8 @@ extern DECLSPEC float SDLCALL SDL_GameControllerGetSensorDataRate(SDL_GameContro
  * \param data A pointer filled with the current sensor state
  * \param num_values The number of values to write to data
  * \return 0 or -1 if an error occurred.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerGetSensorData(SDL_GameController *gamecontroller, SDL_SensorType type, float *data, int num_values);
 
@@ -795,6 +855,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerGetSensorData(SDL_GameController *
  *                              rumble motor, from 0 to 0xFFFF
  * \param duration_ms The duration of the rumble effect, in milliseconds
  * \returns 0, or -1 if rumble isn't supported on this controller
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerRumble(SDL_GameController *gamecontroller, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms);
 
@@ -815,6 +877,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerRumble(SDL_GameController *gamecon
  *                     to 0xFFFF
  * \param duration_ms The duration of the rumble effect, in milliseconds
  * \returns 0, or -1 if trigger rumble isn't supported on this controller
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerRumbleTriggers(SDL_GameController *gamecontroller, Uint16 left_rumble, Uint16 right_rumble, Uint32 duration_ms);
 
@@ -824,6 +888,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerRumbleTriggers(SDL_GameController
  * \param gamecontroller The controller to query
  * \returns SDL_TRUE, or SDL_FALSE if this controller does not have a
  *          modifiable LED
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerHasLED(SDL_GameController *gamecontroller);
 
@@ -835,6 +901,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GameControllerHasLED(SDL_GameController *ga
  * \param green The intensity of the green LED
  * \param blue The intensity of the blue LED
  * \returns 0, or -1 if this controller does not have a modifiable LED
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_GameControllerSetLED(SDL_GameController *gamecontroller, Uint8 red, Uint8 green, Uint8 blue);
 
@@ -857,6 +925,8 @@ extern DECLSPEC int SDLCALL SDL_GameControllerSendEffect(SDL_GameController *gam
  * \param gamecontroller a game controller identifier previously returned by
  *                       SDL_GameControllerOpen()
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GameControllerOpen
  */
 extern DECLSPEC void SDLCALL SDL_GameControllerClose(SDL_GameController *gamecontroller);
diff --git a/include/SDL_haptic.h b/include/SDL_haptic.h
index e68da77d3..26e996a51 100644
--- a/include/SDL_haptic.h
+++ b/include/SDL_haptic.h
@@ -971,6 +971,8 @@ extern DECLSPEC SDL_Haptic *SDLCALL SDL_HapticOpenFromJoystick(SDL_Joystick *
  *
  * \param haptic the SDL_Haptic device to close
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticOpen
  */
 extern DECLSPEC void SDLCALL SDL_HapticClose(SDL_Haptic * haptic);
@@ -1034,6 +1036,8 @@ extern DECLSPEC unsigned int SDLCALL SDL_HapticQuery(SDL_Haptic * haptic);
  * \param haptic the SDL_Haptic device to query
  * \returns the number of axes on success or a negative error code on failure;
  *          call SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_HapticNumAxes(SDL_Haptic * haptic);
 
@@ -1064,6 +1068,8 @@ extern DECLSPEC int SDLCALL SDL_HapticEffectSupported(SDL_Haptic * haptic,
  * \returns the ID of the effect on success or a negative error code on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticDestroyEffect
  * \sa SDL_HapticRunEffect
  * \sa SDL_HapticUpdateEffect
@@ -1208,6 +1214,8 @@ extern DECLSPEC int SDLCALL SDL_HapticSetGain(SDL_Haptic * haptic, int gain);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticQuery
  */
 extern DECLSPEC int SDLCALL SDL_HapticSetAutocenter(SDL_Haptic * haptic,
@@ -1226,6 +1234,8 @@ extern DECLSPEC int SDLCALL SDL_HapticSetAutocenter(SDL_Haptic * haptic,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticUnpause
  */
 extern DECLSPEC int SDLCALL SDL_HapticPause(SDL_Haptic * haptic);
@@ -1239,6 +1249,8 @@ extern DECLSPEC int SDLCALL SDL_HapticPause(SDL_Haptic * haptic);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticPause
  */
 extern DECLSPEC int SDLCALL SDL_HapticUnpause(SDL_Haptic * haptic);
@@ -1249,6 +1261,8 @@ extern DECLSPEC int SDLCALL SDL_HapticUnpause(SDL_Haptic * haptic);
  * \param haptic the SDL_Haptic device to stop
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_HapticStopAll(SDL_Haptic * haptic);
 
@@ -1260,6 +1274,8 @@ extern DECLSPEC int SDLCALL SDL_HapticStopAll(SDL_Haptic * haptic);
  *          negative error code on failure; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticRumbleInit
  * \sa SDL_HapticRumblePlay
  * \sa SDL_HapticRumbleStop
@@ -1291,6 +1307,8 @@ extern DECLSPEC int SDLCALL SDL_HapticRumbleInit(SDL_Haptic * haptic);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticRumbleInit
  * \sa SDL_HapticRumbleStop
  * \sa SDL_HapticRumbleSupported
@@ -1304,6 +1322,8 @@ extern DECLSPEC int SDLCALL SDL_HapticRumblePlay(SDL_Haptic * haptic, float stre
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HapticRumbleInit
  * \sa SDL_HapticRumblePlay
  * \sa SDL_HapticRumbleSupported
diff --git a/include/SDL_hints.h b/include/SDL_hints.h
index 5536a4373..db286a24c 100644
--- a/include/SDL_hints.h
+++ b/include/SDL_hints.h
@@ -1816,6 +1816,8 @@ typedef enum
  * \param priority the SDL_HintPriority level for the hint
  * \returns SDL_TRUE if the hint was set, SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetHint
  * \sa SDL_SetHint
  */
@@ -1834,6 +1836,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_SetHintWithPriority(const char *name,
  * \param value the value of the hint variable
  * \returns SDL_TRUE if the hint was set, SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetHint
  * \sa SDL_SetHintWithPriority
  */
@@ -1846,6 +1850,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_SetHint(const char *name,
  * \param name the hint to query
  * \returns the string value of a hint or NULL if the hint isn't set.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetHint
  * \sa SDL_SetHintWithPriority
  */
@@ -1912,6 +1918,8 @@ extern DECLSPEC void SDLCALL SDL_DelHintCallback(const char *name,
  * Clear all hints.
  *
  * This function is automatically called during SDL_Quit().
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_ClearHints(void);
 
diff --git a/include/SDL_joystick.h b/include/SDL_joystick.h
index 8cc0dbfb7..88d043686 100644
--- a/include/SDL_joystick.h
+++ b/include/SDL_joystick.h
@@ -124,6 +124,8 @@ typedef enum
  * In particular, you are guaranteed that the joystick list won't change, so
  * the API functions that take a joystick index will be valid, and joystick
  * and game controller events will not be delivered.
+ *
+ * \since This function is available since SDL 2.0.7.
  */
 extern DECLSPEC void SDLCALL SDL_LockJoysticks(void);
 
@@ -137,6 +139,8 @@ extern DECLSPEC void SDLCALL SDL_LockJoysticks(void);
  * In particular, you are guaranteed that the joystick list won't change, so
  * the API functions that take a joystick index will be valid, and joystick
  * and game controller events will not be delivered.
+ *
+ * \since This function is available since SDL 2.0.7.
  */
 extern DECLSPEC void SDLCALL SDL_UnlockJoysticks(void);
 
@@ -146,6 +150,8 @@ extern DECLSPEC void SDLCALL SDL_UnlockJoysticks(void);
  * \returns the number of attached joysticks on success or a negative error
  *          code on failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickName
  * \sa SDL_JoystickOpen
  */
@@ -161,6 +167,8 @@ extern DECLSPEC int SDLCALL SDL_NumJoysticks(void);
  * \returns the name of the selected joystick. If no name can be found, this
  *          function returns NULL; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickName
  * \sa SDL_JoystickOpen
  */
@@ -169,6 +177,8 @@ extern DECLSPEC const char *SDLCALL SDL_JoystickNameForIndex(int device_index);
 /**
  * Get the player index of a joystick, or -1 if it's not available This can be
  * called before any joysticks are opened.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickGetDevicePlayerIndex(int device_index);
 
@@ -183,6 +193,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickGetDevicePlayerIndex(int device_index);
  * \returns the GUID of the selected joystick. If called on an invalid index,
  *          this function returns a zero GUID
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetGUID
  * \sa SDL_JoystickGetGUIDString
  */
@@ -198,6 +210,8 @@ extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetDeviceGUID(int device_in
  *                     on the system
  * \returns the USB vendor ID of the selected joystick. If called on an
  *          invalid index, this function returns zero
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceVendor(int device_index);
 
@@ -211,6 +225,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceVendor(int device_index);
  *                     on the system
  * \returns the USB product ID of the selected joystick. If called on an
  *          invalid index, this function returns zero
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceProduct(int device_index);
 
@@ -224,6 +240,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceProduct(int device_index);
  *                     on the system
  * \returns the product version of the selected joystick. If called on an
  *          invalid index, this function returns zero
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceProductVersion(int device_index);
 
@@ -236,6 +254,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetDeviceProductVersion(int device_in
  *                     on the system
  * \returns the SDL_JoystickType of the selected joystick. If called on an
  *          invalid index, this function returns `SDL_JOYSTICK_TYPE_UNKNOWN`
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC SDL_JoystickType SDLCALL SDL_JoystickGetDeviceType(int device_index);
 
@@ -249,6 +269,8 @@ extern DECLSPEC SDL_JoystickType SDLCALL SDL_JoystickGetDeviceType(int device_in
  *                     on the system
  * \returns the instance id of the selected joystick. If called on an invalid
  *          index, this function returns zero
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickGetDeviceInstanceID(int device_index);
 
@@ -267,6 +289,8 @@ extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickGetDeviceInstanceID(int devic
  * \returns a joystick identifier or NULL if an error occurred; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickClose
  * \sa SDL_JoystickInstanceID
  */
@@ -289,6 +313,8 @@ extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickFromInstanceID(SDL_JoystickID
  * \param player_index the player index to get the SDL_Joystick for
  * \returns an SDL_Joystick on success or NULL on failure; call SDL_GetError()
  *          for more information.
+ *
+ * \since This function is available since SDL 2.0.12.
  */
 extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickFromPlayerIndex(int player_index);
 
@@ -296,6 +322,8 @@ extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickFromPlayerIndex(int player_ind
  * Attach a new virtual joystick.
  *
  * \returns the joystick's device index, or -1 if an error occurred.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickAttachVirtual(SDL_JoystickType type,
                                                       int naxes,
@@ -308,6 +336,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickAttachVirtual(SDL_JoystickType type,
  * \param device_index a value previously returned from
  *                     SDL_JoystickAttachVirtual()
  * \returns 0 on success, or -1 if an error occurred.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickDetachVirtual(int device_index);
 
@@ -316,6 +346,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickDetachVirtual(int device_index);
  *
  * \param device_index a joystick device index.
  * \returns SDL_TRUE if the joystick is virtual, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_JoystickIsVirtual(int device_index);
 
@@ -332,6 +364,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_JoystickIsVirtual(int device_index);
  * \param axis the specific axis on the virtual joystick to set.
  * \param value the new value for the specified axis.
  * \returns 0 on success, -1 on error.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualAxis(SDL_Joystick *joystick, int axis, Sint16 value);
 
@@ -348,6 +382,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualAxis(SDL_Joystick *joystick, i
  * \param button the specific button on the virtual joystick to set.
  * \param value the new value for the specified button.
  * \returns 0 on success, -1 on error.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualButton(SDL_Joystick *joystick, int button, Uint8 value);
 
@@ -364,6 +400,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualButton(SDL_Joystick *joystick,
  * \param hat the specific hat on the virtual joystick to set.
  * \param value the new value for the specified hat.
  * \returns 0 on success, -1 on error.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualHat(SDL_Joystick *joystick, int hat, Uint8 value);
 
@@ -389,6 +427,8 @@ extern DECLSPEC const char *SDLCALL SDL_JoystickName(SDL_Joystick *joystick);
  *
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \returns the player index, or -1 if it's not available.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickGetPlayerIndex(SDL_Joystick *joystick);
 
@@ -397,6 +437,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickGetPlayerIndex(SDL_Joystick *joystick);
  *
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \param player_index the player index to set.
+ *
+ * \since This function is available since SDL 2.0.12.
  */
 extern DECLSPEC void SDLCALL SDL_JoystickSetPlayerIndex(SDL_Joystick *joystick, int player_index);
 
@@ -410,6 +452,8 @@ extern DECLSPEC void SDLCALL SDL_JoystickSetPlayerIndex(SDL_Joystick *joystick,
  *          this function returns a zero GUID; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetDeviceGUID
  * \sa SDL_JoystickGetGUIDString
  */
@@ -422,6 +466,8 @@ extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUID(SDL_Joystick *joyst
  *
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \returns the USB vendor ID of the selected joystick, or 0 if unavailable.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetVendor(SDL_Joystick *joystick);
 
@@ -432,6 +478,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetVendor(SDL_Joystick *joystick);
  *
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \returns the USB product ID of the selected joystick, or 0 if unavailable.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetProduct(SDL_Joystick *joystick);
 
@@ -442,6 +490,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetProduct(SDL_Joystick *joystick);
  *
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \returns the product version of the selected joystick, or 0 if unavailable.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetProductVersion(SDL_Joystick *joystick);
 
@@ -453,6 +503,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_JoystickGetProductVersion(SDL_Joystick *joyst
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \returns the serial number of the selected joystick, or NULL if
  *          unavailable.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC const char * SDLCALL SDL_JoystickGetSerial(SDL_Joystick *joystick);
 
@@ -461,6 +513,8 @@ extern DECLSPEC const char * SDLCALL SDL_JoystickGetSerial(SDL_Joystick *joystic
  *
  * \param joystick the SDL_Joystick obtained from SDL_JoystickOpen()
  * \returns the SDL_JoystickType of the selected joystick.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC SDL_JoystickType SDLCALL SDL_JoystickGetType(SDL_Joystick *joystick);
 
@@ -473,6 +527,8 @@ extern DECLSPEC SDL_JoystickType SDLCALL SDL_JoystickGetType(SDL_Joystick *joyst
  * \param pszGUID buffer in which to write the ASCII string
  * \param cbGUID the size of pszGUID
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetDeviceGUID
  * \sa SDL_JoystickGetGUID
  * \sa SDL_JoystickGetGUIDFromString
@@ -489,6 +545,8 @@ extern DECLSPEC void SDLCALL SDL_JoystickGetGUIDString(SDL_JoystickGUID guid, ch
  * \param pchGUID string containing an ASCII representation of a GUID
  * \returns a SDL_JoystickGUID structure.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetGUIDString
  */
 extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUIDFromString(const char *pchGUID);
@@ -500,6 +558,8 @@ extern DECLSPEC SDL_JoystickGUID SDLCALL SDL_JoystickGetGUIDFromString(const cha
  * \returns SDL_TRUE if the joystick has been opened, SDL_FALSE if it has not;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickClose
  * \sa SDL_JoystickOpen
  */
@@ -512,6 +572,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_JoystickGetAttached(SDL_Joystick *joystick)
  * \returns the instance ID of the specified joystick on success or a negative
  *          error code on failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickOpen
  */
 extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickInstanceID(SDL_Joystick *joystick);
@@ -528,6 +590,8 @@ extern DECLSPEC SDL_JoystickID SDLCALL SDL_JoystickInstanceID(SDL_Joystick *joys
  *          negative error code on failure; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetAxis
  * \sa SDL_JoystickOpen
  */
@@ -545,6 +609,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick *joystick);
  * \returns the number of trackballs on success or a negative error code on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetBall
  */
 extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick *joystick);
@@ -556,6 +622,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick *joystick);
  * \returns the number of POV hats on success or a negative error code on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetHat
  * \sa SDL_JoystickOpen
  */
@@ -568,6 +636,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick *joystick);
  * \returns the number of buttons on success or a negative error code on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickGetButton
  * \sa SDL_JoystickOpen
  */
@@ -579,6 +649,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick *joystick);
  * This is called automatically by the event loop if any joystick events are
  * enabled.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickEventState
  */
 extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);
@@ -602,6 +674,8 @@ extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);
  *          If `state` is `SDL_QUERY` then the current state is returned,
  *          otherwise the new processing state is returned.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GameControllerEventState
  */
 extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);
@@ -627,6 +701,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);
  * \returns a 16-bit signed integer representing the current position of the
  *          axis or 0 on failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickNumAxes
  */
 extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick,
@@ -643,6 +719,8 @@ extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick,
  * \param axis the axis to query; the axis indices start at index 0
  * \param state Upon return, the initial value is supplied here.
  * \return SDL_TRUE if this axis has any initial value, or SDL_FALSE if not.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_JoystickGetAxisInitialState(SDL_Joystick *joystick,
                                                    int axis, Sint16 *state);
@@ -681,6 +759,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_JoystickGetAxisInitialState(SDL_Joystick *j
  * \param hat the hat index to get the state from; indices start at index 0
  * \returns the current hat position.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickNumHats
  */
 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick *joystick,
@@ -701,6 +781,8 @@ extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick *joystick,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickNumBalls
  */
 extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick *joystick,
@@ -714,6 +796,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick *joystick,
  *               index 0
  * \returns 1 if the specified button is pressed, 0 otherwise.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickNumButtons
  */
 extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick *joystick,
@@ -732,6 +816,8 @@ extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick *joystick,
  *                              rumble motor, from 0 to 0xFFFF
  * \param duration_ms The duration of the rumble effect, in milliseconds
  * \returns 0, or -1 if rumble isn't supported on this joystick
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms);
 
@@ -753,6 +839,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickRumble(SDL_Joystick *joystick, Uint16 lo
  *                     to 0xFFFF
  * \param duration_ms The duration of the rumble effect, in milliseconds
  * \returns 0, or -1 if trigger rumble isn't supported on this joystick
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickRumbleTriggers(SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble, Uint32 duration_ms);
 
@@ -764,6 +852,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickRumbleTriggers(SDL_Joystick *joystick, U
  *
  * \param joystick The joystick to query
  * \return SDL_TRUE if the joystick has a modifiable LED, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_JoystickHasLED(SDL_Joystick *joystick);
 
@@ -778,6 +868,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_JoystickHasLED(SDL_Joystick *joystick);
  * \param green The intensity of the green LED
  * \param blue The intensity of the blue LED
  * \returns 0 on success, -1 if this joystick does not have a modifiable LED
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickSetLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue);
 
@@ -798,6 +890,8 @@ extern DECLSPEC int SDLCALL SDL_JoystickSendEffect(SDL_Joystick *joystick, const
  *
  * \param joystick The joystick device to close
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_JoystickOpen
  */
 extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick *joystick);
diff --git a/include/SDL_keyboard.h b/include/SDL_keyboard.h
index 4260b5e8d..5b4fd91a6 100644
--- a/include/SDL_keyboard.h
+++ b/include/SDL_keyboard.h
@@ -58,6 +58,8 @@ typedef struct SDL_Keysym
  * Query the window which currently has keyboard focus.
  *
  * \returns the window with keyboard focus.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_Window * SDLCALL SDL_GetKeyboardFocus(void);
 
@@ -85,6 +87,8 @@ extern DECLSPEC SDL_Window * SDLCALL SDL_GetKeyboardFocus(void);
  * \param numkeys if non-NULL, receives the length of the returned array
  * \returns a pointer to an array of key states.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PumpEvents
  */
 extern DECLSPEC const Uint8 *SDLCALL SDL_GetKeyboardState(int *numkeys);
@@ -95,6 +99,8 @@ extern DECLSPEC const Uint8 *SDLCALL SDL_GetKeyboardState(int *numkeys);
  * \returns an OR'd combination of the modifier keys for the keyboard. See
  *          SDL_Keymod for details.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetKeyboardState
  * \sa SDL_SetModState
  */
@@ -113,6 +119,8 @@ extern DECLSPEC SDL_Keymod SDLCALL SDL_GetModState(void);
  *
  * \param modstate the desired SDL_Keymod for the keyboard
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetModState
  */
 extern DECLSPEC void SDLCALL SDL_SetModState(SDL_Keymod modstate);
@@ -126,6 +134,8 @@ extern DECLSPEC void SDLCALL SDL_SetModState(SDL_Keymod modstate);
  * \param scancode the desired SDL_Scancode to query
  * \returns the SDL_Keycode that corresponds to the given SDL_Scancode.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetKeyName
  * \sa SDL_GetScancodeFromKey
  */
@@ -140,6 +150,8 @@ extern DECLSPEC SDL_Keycode SDLCALL SDL_GetKeyFromScancode(SDL_Scancode scancode
  * \param key the desired SDL_Keycode to query
  * \returns the SDL_Scancode that corresponds to the given SDL_Keycode.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetKeyFromScancode
  * \sa SDL_GetScancodeName
  */
@@ -196,6 +208,8 @@ extern DECLSPEC SDL_Scancode SDLCALL SDL_GetScancodeFromName(const char *name);
  *          must copy it. If the key doesn't have a name, this function
  *          returns an empty string ("").
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetKeyFromName
  * \sa SDL_GetKeyFromScancode
  * \sa SDL_GetScancodeFromKey
@@ -209,6 +223,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetKeyName(SDL_Keycode key);
  * \returns key code, or `SDLK_UNKNOWN` if the name wasn't recognized; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetKeyFromScancode
  * \sa SDL_GetKeyName
  * \sa SDL_GetScancodeFromName
@@ -225,6 +241,8 @@ extern DECLSPEC SDL_Keycode SDLCALL SDL_GetKeyFromName(const char *name);
  *
  * On some platforms using this function activates the screen keyboard.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetTextInputRect
  * \sa SDL_StopTextInput
  */
@@ -244,6 +262,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_IsTextInputActive(void);
 /**
  * Stop receiving any text input events.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_StartTextInput
  */
 extern DECLSPEC void SDLCALL SDL_StopTextInput(void);
@@ -254,6 +274,8 @@ extern DECLSPEC void SDLCALL SDL_StopTextInput(void);
  * \param rect the SDL_Rect structure representing the rectangle to receive
  *             text (ignored if NULL)
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_StartTextInput
  */
 extern DECLSPEC void SDLCALL SDL_SetTextInputRect(SDL_Rect *rect);
diff --git a/include/SDL_loadso.h b/include/SDL_loadso.h
index e6a33a0a2..837c53e55 100644
--- a/include/SDL_loadso.h
+++ b/include/SDL_loadso.h
@@ -57,6 +57,8 @@ extern "C" {
  * \returns an opaque pointer to the object handle or NULL if there was an
  *          error; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LoadFunction
  * \sa SDL_UnloadObject
  */
@@ -82,6 +84,8 @@ extern DECLSPEC void *SDLCALL SDL_LoadObject(const char *sofile);
  * \returns a pointer to the function or NULL if there was an error; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LoadObject
  * \sa SDL_UnloadObject
  */
@@ -93,6 +97,8 @@ extern DECLSPEC void *SDLCALL SDL_LoadFunction(void *handle,
  *
  * \param handle a valid shared object handle returned by SDL_LoadObject()
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LoadFunction
  * \sa SDL_LoadObject
  */
diff --git a/include/SDL_locale.h b/include/SDL_locale.h
index cb4b04379..858c1c9ab 100644
--- a/include/SDL_locale.h
+++ b/include/SDL_locale.h
@@ -85,6 +85,8 @@ typedef struct SDL_Locale
  *
  * \return array of locales, terminated with a locale with a NULL language
  *         field. Will return NULL on error.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_Locale * SDLCALL SDL_GetPreferredLocales(void);
 
diff --git a/include/SDL_log.h b/include/SDL_log.h
index e85961ace..141891292 100644
--- a/include/SDL_log.h
+++ b/include/SDL_log.h
@@ -116,6 +116,8 @@ typedef enum
  *
  * \param priority the SDL_LogPriority to assign
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogSetPriority
  */
 extern DECLSPEC void SDLCALL SDL_LogSetAllPriority(SDL_LogPriority priority);
@@ -126,6 +128,8 @@ extern DECLSPEC void SDLCALL SDL_LogSetAllPriority(SDL_LogPriority priority);
  * \param category the category to assign a priority to
  * \param priority the SDL_LogPriority to assign
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogGetPriority
  * \sa SDL_LogSetAllPriority
  */
@@ -138,6 +142,8 @@ extern DECLSPEC void SDLCALL SDL_LogSetPriority(int category,
  * \param category the category to query
  * \returns the SDL_LogPriority for the requested category
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogSetPriority
  */
 extern DECLSPEC SDL_LogPriority SDLCALL SDL_LogGetPriority(int category);
@@ -147,6 +153,8 @@ extern DECLSPEC SDL_LogPriority SDLCALL SDL_LogGetPriority(int category);
  *
  * This is called by SDL_Quit().
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogSetAllPriority
  * \sa SDL_LogSetPriority
  */
@@ -160,6 +168,8 @@ extern DECLSPEC void SDLCALL SDL_LogResetPriorities(void);
  * \param ... additional parameters matching % tokens in the `fmt` string, if
  *            any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogCritical
  * \sa SDL_LogDebug
  * \sa SDL_LogError
@@ -179,6 +189,8 @@ extern DECLSPEC void SDLCALL SDL_Log(SDL_PRINTF_FORMAT_STRING const char *fmt, .
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogCritical
  * \sa SDL_LogDebug
@@ -198,6 +210,8 @@ extern DECLSPEC void SDLCALL SDL_LogVerbose(int category, SDL_PRINTF_FORMAT_STRI
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogCritical
  * \sa SDL_LogError
@@ -217,6 +231,8 @@ extern DECLSPEC void SDLCALL SDL_LogDebug(int category, SDL_PRINTF_FORMAT_STRING
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogCritical
  * \sa SDL_LogDebug
@@ -236,6 +252,8 @@ extern DECLSPEC void SDLCALL SDL_LogInfo(int category, SDL_PRINTF_FORMAT_STRING
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogCritical
  * \sa SDL_LogDebug
@@ -255,6 +273,8 @@ extern DECLSPEC void SDLCALL SDL_LogWarn(int category, SDL_PRINTF_FORMAT_STRING
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogCritical
  * \sa SDL_LogDebug
@@ -274,6 +294,8 @@ extern DECLSPEC void SDLCALL SDL_LogError(int category, SDL_PRINTF_FORMAT_STRING
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogDebug
  * \sa SDL_LogError
@@ -294,6 +316,8 @@ extern DECLSPEC void SDLCALL SDL_LogCritical(int category, SDL_PRINTF_FORMAT_STR
  * \param ... additional parameters matching % tokens in the **fmt** string,
  *            if any
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Log
  * \sa SDL_LogCritical
  * \sa SDL_LogDebug
@@ -350,6 +374,8 @@ typedef void (SDLCALL *SDL_LogOutputFunction)(void *userdata, int category, SDL_
  * \param userdata a pointer filled in with the pointer that is passed to
  *                 `callback`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogSetOutputFunction
  */
 extern DECLSPEC void SDLCALL SDL_LogGetOutputFunction(SDL_LogOutputFunction *callback, void **userdata);
@@ -360,6 +386,8 @@ extern DECLSPEC void SDLCALL SDL_LogGetOutputFunction(SDL_LogOutputFunction *cal
  * \param callback an SDL_LogOutputFunction to call instead of the default
  * \param userdata a pointer that is passed to `callback`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LogGetOutputFunction
  */
 extern DECLSPEC void SDLCALL SDL_LogSetOutputFunction(SDL_LogOutputFunction callback, void *userdata);
diff --git a/include/SDL_main.h b/include/SDL_main.h
index 087193b28..e5f50e7a5 100644
--- a/include/SDL_main.h
+++ b/include/SDL_main.h
@@ -130,6 +130,8 @@ extern SDLMAIN_DECLSPEC int SDL_main(int argc, char *argv[]);
  * will not be changed it is necessary to define SDL_MAIN_HANDLED before
  * including SDL.h.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_Init
  */
 extern DECLSPEC void SDLCALL SDL_SetMainReady(void);
@@ -138,6 +140,8 @@ extern DECLSPEC void SDLCALL SDL_SetMainReady(void);
 
 /**
  * This can be called to set the application class at startup
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_RegisterApp(char *name, Uint32 style, void *hInst);
 extern DECLSPEC void SDLCALL SDL_UnregisterApp(void);
@@ -170,6 +174,8 @@ extern DECLSPEC int SDLCALL SDL_WinRTRunApp(SDL_main_func mainFunction, void * r
  * \param argv The argv parameter from the application's main() function
  * \param mainFunction The SDL app's C-style main(), an SDL_main_func
  * \return the return value from mainFunction
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_UIKitRunApp(int argc, char *argv[], SDL_main_func mainFunction);
 
diff --git a/include/SDL_messagebox.h b/include/SDL_messagebox.h
index c2aef70fa..2731c9254 100644
--- a/include/SDL_messagebox.h
+++ b/include/SDL_messagebox.h
@@ -175,6 +175,8 @@ extern DECLSPEC int SDLCALL SDL_ShowMessageBox(const SDL_MessageBoxData *message
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ShowMessageBox
  */
 extern DECLSPEC int SDLCALL SDL_ShowSimpleMessageBox(Uint32 flags, const char *title, const char *message, SDL_Window *window);
diff --git a/include/SDL_metal.h b/include/SDL_metal.h
index 60bcb6e18..bc72ca76f 100644
--- a/include/SDL_metal.h
+++ b/include/SDL_metal.h
@@ -58,6 +58,8 @@ typedef void *SDL_MetalView;
  * The returned handle can be casted directly to a NSView or UIView. To access
  * the backing CAMetalLayer, call SDL_Metal_GetLayer().
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_Metal_DestroyView
  * \sa SDL_Metal_GetLayer
  */
@@ -69,6 +71,8 @@ extern DECLSPEC SDL_MetalView SDLCALL SDL_Metal_CreateView(SDL_Window * window);
  * This should be called before SDL_DestroyWindow, if SDL_Metal_CreateView was
  * called after SDL_CreateWindow.
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_Metal_CreateView
  */
 extern DECLSPEC void SDLCALL SDL_Metal_DestroyView(SDL_MetalView view);
@@ -76,6 +80,8 @@ extern DECLSPEC void SDLCALL SDL_Metal_DestroyView(SDL_MetalView view);
 /**
  * Get a pointer to the backing CAMetalLayer for the given view.
  *
+ * \since This function is available since SDL 2.0.14.
+ *
  * \sa SDL_MetalCreateView
  */
 extern DECLSPEC void *SDLCALL SDL_Metal_GetLayer(SDL_MetalView view);
@@ -87,6 +93,8 @@ extern DECLSPEC void *SDLCALL SDL_Metal_GetLayer(SDL_MetalView view);
  * \param window SDL_Window from which the drawable size should be queried
  * \param w Pointer to variable for storing the width in pixels, may be NULL
  *
+ * \since This function is available since SDL 2.0.14.
+ *
  * \sa SDL_GetWindowSize
  * \sa SDL_CreateWindow
  */
diff --git a/include/SDL_misc.h b/include/SDL_misc.h
index 7cd4d5788..ff0fa9527 100644
--- a/include/SDL_misc.h
+++ b/include/SDL_misc.h
@@ -64,7 +64,7 @@ extern "C" {
  * \returns 0 on success, or -1 on error; call SDL_GetError() for more
  *          information.
  *
- * \since This function is available in SDL 2.0.14 and newer
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC int SDLCALL SDL_OpenURL(const char *url);
 
diff --git a/include/SDL_mouse.h b/include/SDL_mouse.h
index 8fbe38f8a..c41055f40 100644
--- a/include/SDL_mouse.h
+++ b/include/SDL_mouse.h
@@ -75,6 +75,8 @@ typedef enum
  * Get the window which currently has mouse focus.
  *
  * \returns the window with mouse focus.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_Window * SDLCALL SDL_GetMouseFocus(void);
 
@@ -93,6 +95,8 @@ extern DECLSPEC SDL_Window * SDLCALL SDL_GetMouseFocus(void);
  *          focus window
  * \returns a 32-bit button bitmask of the current button state.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetGlobalMouseState
  * \sa SDL_GetRelativeMouseState
  * \sa SDL_PumpEvents
@@ -141,6 +145,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_GetGlobalMouseState(int *x, int *y);
  * \param y a pointer filled with the last recorded y coordinate of the mouse
  * \returns a 32-bit button bitmask of the relative button state.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetMouseState
  */
 extern DECLSPEC Uint32 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
@@ -158,6 +164,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
  * \param x the x coordinate within the window
  * \param y the y coordinate within the window
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WarpMouseGlobal
  */
 extern DECLSPEC void SDLCALL SDL_WarpMouseInWindow(SDL_Window * window,
@@ -204,6 +212,8 @@ extern DECLSPEC int SDLCALL SDL_WarpMouseGlobal(int x, int y);
  *
  *          If relative mode is not supported, this returns -1.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRelativeMouseMode
  */
 extern DECLSPEC int SDLCALL SDL_SetRelativeMouseMode(SDL_bool enabled);
@@ -250,6 +260,8 @@ extern DECLSPEC int SDLCALL SDL_CaptureMouse(SDL_bool enabled);
  *
  * \returns SDL_TRUE if relative mode is enabled or SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetRelativeMouseMode
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode(void);
@@ -289,6 +301,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode(void);
  * \returns a new cursor with the specified parameters on success or NULL on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FreeCursor
  * \sa SDL_SetCursor
  * \sa SDL_ShowCursor
@@ -339,6 +353,8 @@ extern DECLSPEC SDL_Cursor *SDLCALL SDL_CreateSystemCursor(SDL_SystemCursor id);
  *
  * \param cursor a cursor to make active
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateCursor
  * \sa SDL_GetCursor
  * \sa SDL_ShowCursor
@@ -353,6 +369,8 @@ extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor * cursor);
  *
  * \returns the active cursor or NULL if there is no mouse.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetCursor
  */
 extern DECLSPEC SDL_Cursor *SDLCALL SDL_GetCursor(void);
@@ -376,6 +394,8 @@ extern DECLSPEC SDL_Cursor *SDLCALL SDL_GetDefaultCursor(void);
  *
  * \param cursor the cursor to free
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateColorCursor
  * \sa SDL_CreateCursor
  * \sa SDL_CreateSystemCursor
@@ -397,6 +417,8 @@ extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor * cursor);
  *          cursor is hidden, or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateCursor
  * \sa SDL_SetCursor
  */
diff --git a/include/SDL_mutex.h b/include/SDL_mutex.h
index 2f27f19ac..7b0820893 100644
--- a/include/SDL_mutex.h
+++ b/include/SDL_mutex.h
@@ -71,6 +71,8 @@ typedef struct SDL_mutex SDL_mutex;
  * \returns the initialized and unlocked mutex or NULL on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_DestroyMutex
  * \sa SDL_LockMutex
  * \sa SDL_TryLockMutex
@@ -91,6 +93,8 @@ extern DECLSPEC SDL_mutex *SDLCALL SDL_CreateMutex(void);
  *
  * \param mutex the mutex to lock
  * \return 0, or -1 on error.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_LockMutex(SDL_mutex * mutex);
 #define SDL_mutexP(m)   SDL_LockMutex(m)
@@ -108,6 +112,8 @@ extern DECLSPEC int SDLCALL SDL_LockMutex(SDL_mutex * mutex);
  * \returns 0, `SDL_MUTEX_TIMEDOUT`, or -1 on error; call SDL_GetError() for
  *          more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateMutex
  * \sa SDL_DestroyMutex
  * \sa SDL_LockMutex
@@ -129,6 +135,8 @@ extern DECLSPEC int SDLCALL SDL_TryLockMutex(SDL_mutex * mutex);
  *
  * \param mutex the mutex to unlock.
  * \returns 0, or -1 on error.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_UnlockMutex(SDL_mutex * mutex);
 #define SDL_mutexV(m)   SDL_UnlockMutex(m)
@@ -144,6 +152,8 @@ extern DECLSPEC int SDLCALL SDL_UnlockMutex(SDL_mutex * mutex);
  *
  * \param mutex the mutex to destroy
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateMutex
  * \sa SDL_LockMutex
  * \sa SDL_TryLockMutex
@@ -176,6 +186,8 @@ typedef struct SDL_semaphore SDL_sem;
  * \returns a new semaphore or NULL on failure; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_DestroySemaphore
  * \sa SDL_SemPost
  * \sa SDL_SemTryWait
@@ -193,6 +205,8 @@ extern DECLSPEC SDL_sem *SDLCALL SDL_CreateSemaphore(Uint32 initial_value);
  *
  * \param sem the semaphore to destroy
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSemaphore
  * \sa SDL_SemPost
  * \sa SDL_SemTryWait
@@ -217,6 +231,8 @@ extern DECLSPEC void SDLCALL SDL_DestroySemaphore(SDL_sem * sem);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSemaphore
  * \sa SDL_DestroySemaphore
  * \sa SDL_SemPost
@@ -240,6 +256,8 @@ extern DECLSPEC int SDLCALL SDL_SemWait(SDL_sem * sem);
  *          block, or a negative error code on failure; call SDL_GetError()
  *          for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSemaphore
  * \sa SDL_DestroySemaphore
  * \sa SDL_SemPost
@@ -263,6 +281,8 @@ extern DECLSPEC int SDLCALL SDL_SemTryWait(SDL_sem * sem);
  *          succeed in the allotted time, or a negative error code on failure;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSemaphore
  * \sa SDL_DestroySemaphore
  * \sa SDL_SemPost
@@ -279,6 +299,8 @@ extern DECLSPEC int SDLCALL SDL_SemWaitTimeout(SDL_sem * sem, Uint32 ms);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSemaphore
  * \sa SDL_DestroySemaphore
  * \sa SDL_SemTryWait
@@ -294,6 +316,8 @@ extern DECLSPEC int SDLCALL SDL_SemPost(SDL_sem * sem);
  * \param sem the semaphore to query
  * \returns the current value of the semaphore.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSemaphore
  */
 extern DECLSPEC Uint32 SDLCALL SDL_SemValue(SDL_sem * sem);
@@ -316,6 +340,8 @@ typedef struct SDL_cond SDL_cond;
  * \returns a new condition variable or NULL on failure; call SDL_GetError()
  *          for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CondBroadcast
  * \sa SDL_CondSignal
  * \sa SDL_CondWait
@@ -329,6 +355,8 @@ extern DECLSPEC SDL_cond *SDLCALL SDL_CreateCond(void);
  *
  * \param cond the condition variable to destroy
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CondBroadcast
  * \sa SDL_CondSignal
  * \sa SDL_CondWait
@@ -344,6 +372,8 @@ extern DECLSPEC void SDLCALL SDL_DestroyCond(SDL_cond * cond);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CondBroadcast
  * \sa SDL_CondWait
  * \sa SDL_CondWaitTimeout
@@ -359,6 +389,8 @@ extern DECLSPEC int SDLCALL SDL_CondSignal(SDL_cond * cond);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CondSignal
  * \sa SDL_CondWait
  * \sa SDL_CondWaitTimeout
@@ -385,6 +417,8 @@ extern DECLSPEC int SDLCALL SDL_CondBroadcast(SDL_cond * cond);
  * \returns 0 when it is signaled or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CondBroadcast
  * \sa SDL_CondSignal
  * \sa SDL_CondWaitTimeout
@@ -412,6 +446,8 @@ extern DECLSPEC int SDLCALL SDL_CondWait(SDL_cond * cond, SDL_mutex * mutex);
  *          the condition is not signaled in the allotted time, or a negative
  *          error code on failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CondBroadcast
  * \sa SDL_CondSignal
  * \sa SDL_CondWait
diff --git a/include/SDL_pixels.h b/include/SDL_pixels.h
index a6d464c71..fcfd649c5 100644
--- a/include/SDL_pixels.h
+++ b/include/SDL_pixels.h
@@ -367,6 +367,8 @@ extern DECLSPEC const char* SDLCALL SDL_GetPixelFormatName(Uint32 format);
  * \returns SDL_TRUE on success or SDL_FALSE if the conversion wasn't
  *          possible; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_MasksToPixelFormatEnum
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_PixelFormatEnumToMasks(Uint32 format,
@@ -389,6 +391,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_PixelFormatEnumToMasks(Uint32 format,
  * \param Amask the alpha mask for the format
  * \returns one of the SDL_PixelFormatEnum values
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_PixelFormatEnumToMasks
  */
 extern DECLSPEC Uint32 SDLCALL SDL_MasksToPixelFormatEnum(int bpp,
@@ -408,6 +412,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_MasksToPixelFormatEnum(int bpp,
  * \returns the new SDL_PixelFormat structure or NULL on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FreeFormat
  */
 extern DECLSPEC SDL_PixelFormat * SDLCALL SDL_AllocFormat(Uint32 pixel_format);
@@ -417,6 +423,8 @@ extern DECLSPEC SDL_PixelFormat * SDLCALL SDL_AllocFormat(Uint32 pixel_format);
  *
  * \param format the SDL_PixelFormat structure to free
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocFormat
  */
 extern DECLSPEC void SDLCALL SDL_FreeFormat(SDL_PixelFormat *format);
@@ -431,6 +439,8 @@ extern DECLSPEC void SDLCALL SDL_FreeFormat(SDL_PixelFormat *format);
  *          there wasn't enough memory); call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FreePalette
  */
 extern DECLSPEC SDL_Palette *SDLCALL SDL_AllocPalette(int ncolors);
@@ -443,6 +453,8 @@ extern DECLSPEC SDL_Palette *SDLCALL SDL_AllocPalette(int ncolors);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocPalette
  * \sa SDL_FreePalette
  */
@@ -459,6 +471,8 @@ extern DECLSPEC int SDLCALL SDL_SetPixelFormatPalette(SDL_PixelFormat * format,
  * \returns 0 on success or a negative error code if not all of the colors
  *          could be set; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocPalette
  * \sa SDL_CreateRGBSurface
  */
@@ -471,6 +485,8 @@ extern DECLSPEC int SDLCALL SDL_SetPaletteColors(SDL_Palette * palette,
  *
  * \param palette the SDL_Palette structure to be freed
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocPalette
  */
 extern DECLSPEC void SDLCALL SDL_FreePalette(SDL_Palette * palette);
@@ -499,6 +515,8 @@ extern DECLSPEC void SDLCALL SDL_FreePalette(SDL_Palette * palette);
  * \param b the blue component of the pixel in the range 0-255
  * \returns a pixel value
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRGB
  * \sa SDL_GetRGBA
  * \sa SDL_MapRGBA
@@ -532,6 +550,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_MapRGB(const SDL_PixelFormat * format,
  * \param a the alpha component of the pixel in the range 0-255
  * \returns a pixel value
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRGB
  * \sa SDL_GetRGBA
  * \sa SDL_MapRGB
@@ -555,6 +575,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(const SDL_PixelFormat * format,
  * \param g a pointer filled in with the green component
  * \param b a pointer filled in with the blue component
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRGBA
  * \sa SDL_MapRGB
  * \sa SDL_MapRGBA
@@ -582,6 +604,8 @@ extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel,
  * \param b a pointer filled in with the blue component
  * \param a a pointer filled in with the alpha component
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRGB
  * \sa SDL_MapRGB
  * \sa SDL_MapRGBA
@@ -597,6 +621,8 @@ extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel,
  * \param gamma a gamma value where 0.0 is black and 1.0 is identity
  * \param ramp an array of 256 values filled in with the gamma ramp
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowGammaRamp
  */
 extern DECLSPEC void SDLCALL SDL_CalculateGammaRamp(float gamma, Uint16 * ramp);
diff --git a/include/SDL_platform.h b/include/SDL_platform.h
index 1516da38c..8dc0cbcb5 100644
--- a/include/SDL_platform.h
+++ b/include/SDL_platform.h
@@ -219,6 +219,8 @@ extern "C" {
  *
  * \returns the name of the platform. If the correct platform name is not
  *          available, returns a string beginning with the text "Unknown".
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC const char * SDLCALL SDL_GetPlatform (void);
 
diff --git a/include/SDL_power.h b/include/SDL_power.h
index 872be1840..1a484ee2c 100644
--- a/include/SDL_power.h
+++ b/include/SDL_power.h
@@ -72,6 +72,8 @@ typedef enum
  *            a NULL here if you don't care, will return -1 if we can't
  *            determine a value, or we're not running on a battery
  * \returns an SDL_PowerState enum representing the current battery state.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_PowerState SDLCALL SDL_GetPowerInfo(int *secs, int *pct);
 
diff --git a/include/SDL_rect.h b/include/SDL_rect.h
index a17ea44f3..cf6390991 100644
--- a/include/SDL_rect.h
+++ b/include/SDL_rect.h
@@ -161,6 +161,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRect(const SDL_Rect * A,
  * \param B an SDL_Rect structure representing the second rectangle
  * \param result an SDL_Rect structure filled in with the union of rectangles
  *               `A` and `B`
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A,
                                            const SDL_Rect * B,
@@ -180,6 +182,8 @@ extern DECLSPEC void SDLCALL SDL_UnionRect(const SDL_Rect * A,
  *               rectangle
  * \returns SDL_TRUE if any points were enclosed or SDL_FALSE if all the
  *          points were outside of the clipping rectangle.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_EnclosePoints(const SDL_Point * points,
                                                    int count,
@@ -201,6 +205,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_EnclosePoints(const SDL_Point * points,
  * \param X2 a pointer to the ending X-coordinate of the line
  * \param Y2 a pointer to the ending Y-coordinate of the line
  * \returns SDL_TRUE if there is an intersection, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IntersectRectAndLine(const SDL_Rect *
                                                           rect, int *X1,
diff --git a/include/SDL_render.h b/include/SDL_render.h
index 8596931b4..330e4425b 100644
--- a/include/SDL_render.h
+++ b/include/SDL_render.h
@@ -177,6 +177,8 @@ extern DECLSPEC int SDLCALL SDL_GetNumRenderDrivers(void);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRenderer
  * \sa SDL_GetNumRenderDrivers
  */
@@ -195,6 +197,8 @@ extern DECLSPEC int SDLCALL SDL_GetRenderDriverInfo(int index,
  * \returns 0 on success, or -1 on error; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRenderer
  * \sa SDL_CreateWindow
  */
@@ -213,6 +217,8 @@ extern DECLSPEC int SDLCALL SDL_CreateWindowAndRenderer(
  * \returns a valid rendering context or NULL if there was an error; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateSoftwareRenderer
  * \sa SDL_DestroyRenderer
  * \sa SDL_GetNumRenderDrivers
@@ -234,6 +240,8 @@ extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateRenderer(SDL_Window * window,
  * \returns a valid rendering context or NULL if there was an error; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRenderer
  * \sa SDL_CreateWindowRenderer
  * \sa SDL_DestroyRenderer
@@ -247,6 +255,8 @@ extern DECLSPEC SDL_Renderer * SDLCALL SDL_CreateSoftwareRenderer(SDL_Surface *
  * \returns the rendering context on success or NULL on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRenderer
  */
 extern DECLSPEC SDL_Renderer * SDLCALL SDL_GetRenderer(SDL_Window * window);
@@ -260,6 +270,8 @@ extern DECLSPEC SDL_Renderer * SDLCALL SDL_GetRenderer(SDL_Window * window);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRenderer
  */
 extern DECLSPEC int SDLCALL SDL_GetRendererInfo(SDL_Renderer * renderer,
@@ -300,6 +312,8 @@ extern DECLSPEC int SDLCALL SDL_GetRendererOutputSize(SDL_Renderer * renderer,
  *          was active, the format was unsupported, or the width or height
  *          were out of range; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateTextureFromSurface
  * \sa SDL_DestroyTexture
  * \sa SDL_QueryTexture
@@ -328,6 +342,8 @@ extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTexture(SDL_Renderer * renderer,
  * \returns the created texture or NULL on failure; call SDL_GetError() for
  *          more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateTexture
  * \sa SDL_DestroyTexture
  * \sa SDL_QueryTexture
@@ -348,6 +364,8 @@ extern DECLSPEC SDL_Texture * SDLCALL SDL_CreateTextureFromSurface(SDL_Renderer
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateTexture
  */
 extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_Texture * texture,
@@ -373,6 +391,8 @@ extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_Texture * texture,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetTextureColorMod
  * \sa SDL_SetTextureAlphaMod
  */
@@ -390,6 +410,8 @@ extern DECLSPEC int SDLCALL SDL_SetTextureColorMod(SDL_Texture * texture,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetTextureAlphaMod
  * \sa SDL_SetTextureColorMod
  */
@@ -413,6 +435,8 @@ extern DECLSPEC int SDLCALL SDL_GetTextureColorMod(SDL_Texture * texture,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetTextureAlphaMod
  * \sa SDL_SetTextureColorMod
  */
@@ -427,6 +451,8 @@ extern DECLSPEC int SDLCALL SDL_SetTextureAlphaMod(SDL_Texture * texture,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetTextureColorMod
  * \sa SDL_SetTextureAlphaMod
  */
@@ -444,6 +470,8 @@ extern DECLSPEC int SDLCALL SDL_GetTextureAlphaMod(SDL_Texture * texture,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetTextureBlendMode
  * \sa SDL_RenderCopy
  */
@@ -458,6 +486,8 @@ extern DECLSPEC int SDLCALL SDL_SetTextureBlendMode(SDL_Texture * texture,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetTextureBlendMode
  */
 extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture,
@@ -472,6 +502,8 @@ extern DECLSPEC int SDLCALL SDL_GetTextureBlendMode(SDL_Texture * texture,
  * \param scaleMode the SDL_ScaleMode to use for texture scaling.
  * \returns 0 on success, or -1 if the texture is not valid.
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_GetTextureScaleMode
  */
 extern DECLSPEC int SDLCALL SDL_SetTextureScaleMode(SDL_Texture * texture,
@@ -484,6 +516,8 @@ extern DECLSPEC int SDLCALL SDL_SetTextureScaleMode(SDL_Texture * texture,
  * \param scaleMode a pointer filled in with the current scale mode.
  * \return 0 on success, or -1 if the texture is not valid.
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_SetTextureScaleMode
  */
 extern DECLSPEC int SDLCALL SDL_GetTextureScaleMode(SDL_Texture * texture,
@@ -496,6 +530,9 @@ extern DECLSPEC int SDLCALL SDL_GetTextureScaleMode(SDL_Texture * texture,
  * \param userdata the pointer to associate with the texture.
  * \returns 0 on success, or -1 if the texture is not valid.
  *
+ * \since This function is available since SDL git HEAD (in development, not
+ *        in an official release yet).
+ *
  * \sa SDL_GetTextureUserData
  */
 extern DECLSPEC int SDLCALL SDL_SetTextureUserData(SDL_Texture * texture,
@@ -508,6 +545,9 @@ extern DECLSPEC int SDLCALL SDL_SetTextureUserData(SDL_Texture * texture,
  * \return the pointer associated with the texture, or NULL if the texture is
  *         not valid.
  *
+ * \since This function is available since SDL git HEAD (in development, not
+ *        in an official release yet).
+ *
  * \sa SDL_SetTextureUserData
  */
 extern DECLSPEC void * SDLCALL SDL_GetTextureUserData(SDL_Texture * texture);
@@ -535,6 +575,8 @@ extern DECLSPEC void * SDLCALL SDL_GetTextureUserData(SDL_Texture * texture);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateTexture
  * \sa SDL_LockTexture
  * \sa SDL_UnlockTexture
@@ -593,6 +635,8 @@ extern DECLSPEC int SDLCALL SDL_UpdateYUVTexture(SDL_Texture * texture,
  * \param UVpitch the number of bytes between rows of pixel data for the UV
  *                plane.
  * \return 0 on success, or -1 if the texture is not valid.
+ *
+ * \since This function is available since SDL 2.0.16.
  */
 extern DECLSPEC int SDLCALL SDL_UpdateNVTexture(SDL_Texture * texture,
                                                  const SDL_Rect * rect,
@@ -622,6 +666,8 @@ extern DECLSPEC int SDLCALL SDL_UpdateNVTexture(SDL_Texture * texture,
  *          or was not created with `SDL_TEXTUREACCESS_STREAMING`; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_UnlockTexture
  */
 extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_Texture * texture,
@@ -655,6 +701,8 @@ extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_Texture * texture,
  * \returns 0 on success, or -1 if the texture is not valid or was not created
  *          with `SDL_TEXTUREACCESS_STREAMING`
  *
+ * \since This function is available since SDL 2.0.12.
+ *
  * \sa SDL_LockTexture
  * \sa SDL_UnlockTexture
  */
@@ -675,6 +723,8 @@ extern DECLSPEC int SDLCALL SDL_LockTextureToSurface(SDL_Texture *texture,
  *
  * \param texture a texture locked by SDL_LockTexture()
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LockTexture
  */
 extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_Texture * texture);
@@ -821,6 +871,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_RenderGetIntegerScale(SDL_Renderer * render
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderGetViewport
  */
 extern DECLSPEC int SDLCALL SDL_RenderSetViewport(SDL_Renderer * renderer,
@@ -832,6 +884,8 @@ extern DECLSPEC int SDLCALL SDL_RenderSetViewport(SDL_Renderer * renderer,
  * \param renderer the rendering context
  * \param rect an SDL_Rect structure filled in with the current drawing area
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderSetViewport
  */
 extern DECLSPEC void SDLCALL SDL_RenderGetViewport(SDL_Renderer * renderer,
@@ -847,6 +901,8 @@ extern DECLSPEC void SDLCALL SDL_RenderGetViewport(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderGetClipRect
  * \sa SDL_RenderIsClipEnabled
  */
@@ -861,6 +917,8 @@ extern DECLSPEC int SDLCALL SDL_RenderSetClipRect(SDL_Renderer * renderer,
  * \param rect an SDL_Rect structure filled in with the current clipping area
  *             or an empty rectangle if clipping is disabled
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderIsClipEnabled
  * \sa SDL_RenderSetClipRect
  */
@@ -937,6 +995,8 @@ extern DECLSPEC void SDLCALL SDL_RenderGetScale(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRenderDrawColor
  * \sa SDL_RenderClear
  * \sa SDL_RenderDrawLine
@@ -967,6 +1027,8 @@ extern DECLSPEC int SDLCALL SDL_SetRenderDrawColor(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetRenderDrawColor
  */
 extern DECLSPEC int SDLCALL SDL_GetRenderDrawColor(SDL_Renderer * renderer,
@@ -983,6 +1045,8 @@ extern DECLSPEC int SDLCALL SDL_GetRenderDrawColor(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRenderDrawBlendMode
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
@@ -1004,6 +1068,8 @@ extern DECLSPEC int SDLCALL SDL_SetRenderDrawBlendMode(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetRenderDrawBlendMode
  */
 extern DECLSPEC int SDLCALL SDL_GetRenderDrawBlendMode(SDL_Renderer * renderer,
@@ -1037,6 +1103,8 @@ extern DECLSPEC int SDLCALL SDL_RenderClear(SDL_Renderer * renderer);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
  * \sa SDL_RenderDrawPoints
@@ -1061,6 +1129,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawPoint(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
  * \sa SDL_RenderDrawPoint
@@ -1142,6 +1212,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawLines(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
  * \sa SDL_RenderDrawPoint
@@ -1166,6 +1238,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawRect(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
  * \sa SDL_RenderDrawPoint
@@ -1194,6 +1268,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawRects(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
  * \sa SDL_RenderDrawPoint
@@ -1219,6 +1295,8 @@ extern DECLSPEC int SDLCALL SDL_RenderFillRect(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
  * \sa SDL_RenderDrawPoint
@@ -1253,6 +1331,8 @@ extern DECLSPEC int SDLCALL SDL_RenderFillRects(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderCopyEx
  * \sa SDL_SetTextureAlphaMod
  * \sa SDL_SetTextureBlendMode
@@ -1295,6 +1375,8 @@ extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_Renderer * renderer,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderCopy
  * \sa SDL_SetTextureAlphaMod
  * \sa SDL_SetTextureBlendMode
@@ -1316,6 +1398,8 @@ extern DECLSPEC int SDLCALL SDL_RenderCopyEx(SDL_Renderer * renderer,
  * \param x The x coordinate of the point.
  * \param y The y coordinate of the point.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderDrawPointF(SDL_Renderer * renderer,
                                                  float x, float y);
@@ -1327,6 +1411,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawPointF(SDL_Renderer * renderer,
  * \param points The points to draw
  * \param count The number of points to draw
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderDrawPointsF(SDL_Renderer * renderer,
                                                   const SDL_FPoint * points,
@@ -1341,6 +1427,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawPointsF(SDL_Renderer * renderer,
  * \param x2 The x coordinate of the end point.
  * \param y2 The y coordinate of the end point.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderDrawLineF(SDL_Renderer * renderer,
                                                 float x1, float y1, float x2, float y2);
@@ -1353,6 +1441,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawLineF(SDL_Renderer * renderer,
  * \param points The points along the lines
  * \param count The number of points, drawing count-1 lines
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderDrawLinesF(SDL_Renderer * renderer,
                                                  const SDL_FPoint * points,
@@ -1365,6 +1455,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawLinesF(SDL_Renderer * renderer,
  * \param rect A pointer to the destination rectangle, or NULL to outline the
  *             entire rendering target.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderDrawRectF(SDL_Renderer * renderer,
                                                 const SDL_FRect * rect);
@@ -1377,6 +1469,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawRectF(SDL_Renderer * renderer,
  * \param rects A pointer to an array of destination rectangles.
  * \param count The number of rectangles.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderDrawRectsF(SDL_Renderer * renderer,
                                                  const SDL_FRect * rects,
@@ -1390,6 +1484,8 @@ extern DECLSPEC int SDLCALL SDL_RenderDrawRectsF(SDL_Renderer * renderer,
  * \param rect A pointer to the destination rectangle, or NULL for the entire
  *             rendering target.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderFillRectF(SDL_Renderer * renderer,
                                                 const SDL_FRect * rect);
@@ -1402,6 +1498,8 @@ extern DECLSPEC int SDLCALL SDL_RenderFillRectF(SDL_Renderer * renderer,
  * \param rects A pointer to an array of destination rectangles.
  * \param count The number of rectangles.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderFillRectsF(SDL_Renderer * renderer,
                                                  const SDL_FRect * rects,
@@ -1418,6 +1516,8 @@ extern DECLSPEC int SDLCALL SDL_RenderFillRectsF(SDL_Renderer * renderer,
  * \param dstrect A pointer to the destination rectangle, or NULL for the
  *                entire rendering target.
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderCopyF(SDL_Renderer * renderer,
                                             SDL_Texture * texture,
@@ -1442,6 +1542,8 @@ extern DECLSPEC int SDLCALL SDL_RenderCopyF(SDL_Renderer * renderer,
  * \param flip An SDL_RendererFlip value stating which flipping actions should
  *             be performed on the texture
  * \return 0 on success, or -1 on error
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC int SDLCALL SDL_RenderCopyExF(SDL_Renderer * renderer,
                                             SDL_Texture * texture,
@@ -1465,6 +1567,9 @@ extern DECLSPEC int SDLCALL SDL_RenderCopyExF(SDL_Renderer * renderer,
  * \param num_indices Number of indices.
  * \return 0 on success, or -1 if the operation is not supported
  *
+ * \since This function is available since SDL git HEAD (in development, not
+ *        in an official release yet).
+ *
  * \sa SDL_Vertex
  */
 extern DECLSPEC int SDLCALL SDL_RenderGeometry(SDL_Renderer *renderer,
@@ -1490,6 +1595,9 @@ extern DECLSPEC int SDLCALL SDL_RenderGeometry(SDL_Renderer *renderer,
  * \param num_indices Number of indices.
  * \param size_indices Index size: 1 (byte), 2 (short), 4 (int)
  * \return 0 on success, or -1 if the operation is not supported
+ *
+ * \since This function is available since SDL git HEAD (in development, not
+ *        in an official release yet).
  */
 extern DECLSPEC int SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
                                                SDL_Texture *texture,
@@ -1521,6 +1629,8 @@ extern DECLSPEC int SDLCALL SDL_RenderGeometryRaw(SDL_Renderer *renderer,
  * \param pitch the pitch of the `pixels` parameter
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_RenderReadPixels(SDL_Renderer * renderer,
                                                  const SDL_Rect * rect,
@@ -1548,6 +1658,8 @@ extern DECLSPEC int SDLCALL SDL_RenderReadPixels(SDL_Renderer * renderer,
  *
  * \param renderer the rendering context
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RenderClear
  * \sa SDL_RenderDrawLine
  * \sa SDL_RenderDrawLines
@@ -1570,6 +1682,8 @@ extern DECLSPEC void SDLCALL SDL_RenderPresent(SDL_Renderer * renderer);
  *
  * \param texture the texture to destroy
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateTexture
  * \sa SDL_CreateTextureFromSurface
  */
@@ -1580,6 +1694,8 @@ extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_Texture * texture);
  *
  * \param renderer the rendering context
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRenderer
  */
 extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_Renderer * renderer);
@@ -1661,6 +1777,8 @@ extern DECLSPEC int SDLCALL SDL_GL_BindTexture(SDL_Texture *texture, float *texw
  * \param texture the texture to unbind from the current OpenGL/ES/ES2 context
  * \returns 0 on success, or -1 if the operation is not supported
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_BindTexture
  * \sa SDL_GL_MakeCurrent
  */
@@ -1676,6 +1794,8 @@ extern DECLSPEC int SDLCALL SDL_GL_UnbindTexture(SDL_Texture *texture);
  * \returns a `CAMetalLayer *` on success, or NULL if the renderer isn't a
  *          Metal renderer
  *
+ * \since This function is available since SDL 2.0.8.
+ *
  * \sa SDL_RenderGetMetalCommandEncoder
  */
 extern DECLSPEC void *SDLCALL SDL_RenderGetMetalLayer(SDL_Renderer * renderer);
@@ -1690,6 +1810,8 @@ extern DECLSPEC void *SDLCALL SDL_RenderGetMetalLayer(SDL_Renderer * renderer);
  * \returns an `id<MTLRenderCommandEncoder>` on success, or NULL if the
  *          renderer isn't a Metal renderer.
  *
+ * \since This function is available since SDL 2.0.8.
+ *
  * \sa SDL_RenderGetMetalLayer
  */
 extern DECLSPEC void *SDLCALL SDL_RenderGetMetalCommandEncoder(SDL_Renderer * renderer);
@@ -1700,6 +1822,9 @@ extern DECLSPEC void *SDLCALL SDL_RenderGetMetalCommandEncoder(SDL_Renderer * re
  * \param renderer The renderer to toggle
  * \param vsync 1 for on, 0 for off. All other values are reserved
  * \returns a 0 int on success, or non-zero on failure
+ *
+ * \since This function is available since SDL git HEAD (in development, not
+ *        in an official release yet).
  */
 extern DECLSPEC int SDLCALL SDL_RenderSetVSync(SDL_Renderer* renderer, int vsync);
 
diff --git a/include/SDL_rwops.h b/include/SDL_rwops.h
index 6f73fcb4c..b29c32bb6 100644
--- a/include/SDL_rwops.h
+++ b/include/SDL_rwops.h
@@ -206,6 +206,8 @@ typedef struct SDL_RWops
  * \returns a pointer to the SDL_RWops structure that is created, or NULL on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFP
@@ -243,6 +245,8 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFP(FILE * fp, SDL_bool autoclose);
  * \returns a pointer to the SDL_RWops structure that is created, or NULL on
  *          failure; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -275,6 +279,8 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromFP(void * fp,
  * \returns a pointer to a new SDL_RWops structure, or NULL if it fails; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -308,6 +314,8 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromMem(void *mem, int size);
  * \returns a pointer to a new SDL_RWops structure, or NULL if it fails; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -342,6 +350,8 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_RWFromConstMem(const void *mem,
  * \returns a pointer to the allocated memory on success, or NULL on failure;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FreeRW
  */
 extern DECLSPEC SDL_RWops *SDLCALL SDL_AllocRW(void);
@@ -364,6 +374,8 @@ extern DECLSPEC SDL_RWops *SDLCALL SDL_AllocRW(void);
  *
  * \param area the SDL_RWops structure to be freed
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocRW
  */
 extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops * area);
@@ -380,7 +392,7 @@ extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops * area);
  *          unknown or a negative error code on failure; call SDL_GetError()
  *          for more information.
  *
- * \since This function is available since SDL 2.0.0.
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC Sint64 SDLCALL SDL_RWsize(SDL_RWops *context);
 
@@ -406,6 +418,8 @@ extern DECLSPEC Sint64 SDLCALL SDL_RWsize(SDL_RWops *context);
  * \param whence any of `RW_SEEK_SET`, `RW_SEEK_CUR`, `RW_SEEK_END`
  * \returns the final offset in the data stream after the seek or -1 on error.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -430,6 +444,8 @@ extern DECLSPEC Sint64 SDLCALL SDL_RWseek(SDL_RWops *context,
  * \returns the current offset in the stream, or -1 if the information can not
  *          be determined.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -459,6 +475,8 @@ extern DECLSPEC Sint64 SDLCALL SDL_RWtell(SDL_RWops *context);
  * \returns the number of objects read, or 0 at error or end of file; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -489,6 +507,8 @@ extern DECLSPEC size_t SDLCALL SDL_RWread(SDL_RWops *context,
  * \returns the number of objects written, which will be less than **num** on
  *          error; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_RWclose
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
@@ -519,6 +539,8 @@ extern DECLSPEC size_t SDLCALL SDL_RWwrite(SDL_RWops *context,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.10.
+ *
  * \sa SDL_RWFromConstMem
  * \sa SDL_RWFromFile
  * \sa SDL_RWFromFP
@@ -542,6 +564,8 @@ extern DECLSPEC int SDLCALL SDL_RWclose(SDL_RWops *context);
  * \param datasize if not NULL, will store the number of bytes read
  * \param freesrc if non-zero, calls SDL_RWclose() on `src` before returning
  * \returns the data, or NULL if there was an error.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC void *SDLCALL SDL_LoadFile_RW(SDL_RWops *src,
                                               size_t *datasize,
@@ -559,6 +583,8 @@ extern DECLSPEC void *SDLCALL SDL_LoadFile_RW(SDL_RWops *src,
  * \param file the path to read all available data from
  * \param datasize if not NULL, will store the number of bytes read
  * \returns the data, or NULL if there was an error.
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC void *SDLCALL SDL_LoadFile(const char *file, size_t *datasize);
 
@@ -592,6 +618,8 @@ extern DECLSPEC Uint8 SDLCALL SDL_ReadU8(SDL_RWops * src);
  * \param src the stream from which to read data
  * \returns 16 bits of data in the native byte order of the platform.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ReadBE16
  */
 extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops * src);
@@ -606,6 +634,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops * src);
  * \param src the stream from which to read data
  * \returns 16 bits of data in the native byte order of the platform.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ReadLE16
  */
 extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops * src);
@@ -620,6 +650,8 @@ extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops * src);
  * \param src the stream from which to read data
  * \returns 32 bits of data in the native byte order of the platform.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ReadBE32
  */
 extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops * src);
@@ -634,6 +666,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops * src);
  * \param src the stream from which to read data
  * \returns 32 bits of data in the native byte order of the platform.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ReadLE32
  */
 extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops * src);
@@ -648,6 +682,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops * src);
  * \param src the stream from which to read data
  * \returns 64 bits of data in the native byte order of the platform.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ReadBE64
  */
 extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops * src);
@@ -662,6 +698,8 @@ extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops * src);
  * \param src the stream from which to read data
  * \returns 64 bits of data in the native byte order of the platform.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ReadLE64
  */
 extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops * src);
@@ -700,6 +738,8 @@ extern DECLSPEC size_t SDLCALL SDL_WriteU8(SDL_RWops * dst, Uint8 value);
  * \param value the data to be written, in native format
  * \returns 1 on successful write, 0 on error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WriteBE16
  */
 extern DECLSPEC size_t SDLCALL SDL_WriteLE16(SDL_RWops * dst, Uint16 value);
@@ -715,6 +755,8 @@ extern DECLSPEC size_t SDLCALL SDL_WriteLE16(SDL_RWops * dst, Uint16 value);
  * \param value the data to be written, in native format
  * \returns 1 on successful write, 0 on error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WriteLE16
  */
 extern DECLSPEC size_t SDLCALL SDL_WriteBE16(SDL_RWops * dst, Uint16 value);
@@ -731,6 +773,8 @@ extern DECLSPEC size_t SDLCALL SDL_WriteBE16(SDL_RWops * dst, Uint16 value);
  * \param value the data to be written, in native format
  * \returns 1 on successful write, 0 on error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WriteBE32
  */
 extern DECLSPEC size_t SDLCALL SDL_WriteLE32(SDL_RWops * dst, Uint32 value);
@@ -746,6 +790,8 @@ extern DECLSPEC size_t SDLCALL SDL_WriteLE32(SDL_RWops * dst, Uint32 value);
  * \param value the data to be written, in native format
  * \returns 1 on successful write, 0 on error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WriteLE32
  */
 extern DECLSPEC size_t SDLCALL SDL_WriteBE32(SDL_RWops * dst, Uint32 value);
@@ -762,6 +808,8 @@ extern DECLSPEC size_t SDLCALL SDL_WriteBE32(SDL_RWops * dst, Uint32 value);
  * \param value the data to be written, in native format
  * \returns 1 on successful write, 0 on error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WriteBE64
  */
 extern DECLSPEC size_t SDLCALL SDL_WriteLE64(SDL_RWops * dst, Uint64 value);
@@ -777,6 +825,8 @@ extern DECLSPEC size_t SDLCALL SDL_WriteLE64(SDL_RWops * dst, Uint64 value);
  * \param value the data to be written, in native format
  * \returns 1 on successful write, 0 on error.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WriteLE64
  */
 extern DECLSPEC size_t SDLCALL SDL_WriteBE64(SDL_RWops * dst, Uint64 value);
diff --git a/include/SDL_sensor.h b/include/SDL_sensor.h
index 3bab8a4e8..243ca6d96 100644
--- a/include/SDL_sensor.h
+++ b/include/SDL_sensor.h
@@ -133,6 +133,8 @@ typedef enum
  * In particular, you are guaranteed that the sensor list won't change, so the
  * API functions that take a sensor index will be valid, and sensor events
  * will not be delivered.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC void SDLCALL SDL_LockSensors(void);
 extern DECLSPEC void SDLCALL SDL_UnlockSensors(void);
@@ -141,6 +143,8 @@ extern DECLSPEC void SDLCALL SDL_UnlockSensors(void);
  * Count the number of sensors attached to the system right now.
  *
  * \returns the number of sensors detected.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_NumSensors(void);
 
@@ -149,6 +153,8 @@ extern DECLSPEC int SDLCALL SDL_NumSensors(void);
  *
  * \param device_index The sensor to obtain name from
  * \returns the sensor name, or NULL if `device_index` is out of range.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC const char *SDLCALL SDL_SensorGetDeviceName(int device_index);
 
@@ -158,6 +164,8 @@ extern DECLSPEC const char *SDLCALL SDL_SensorGetDeviceName(int device_index);
  * \param device_index The sensor to get the type from
  * \returns the SDL_SensorType, or `SDL_SENSOR_INVALID` if `device_index` is
  *          out of range.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_SensorType SDLCALL SDL_SensorGetDeviceType(int device_index);
 
@@ -167,6 +175,8 @@ extern DECLSPEC SDL_SensorType SDLCALL SDL_SensorGetDeviceType(int device_index)
  * \param device_index The sensor to check
  * \returns the sensor platform dependent type, or -1 if `device_index` is out
  *          of range.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_SensorGetDeviceNonPortableType(int device_index);
 
@@ -175,6 +185,8 @@ extern DECLSPEC int SDLCALL SDL_SensorGetDeviceNonPortableType(int device_index)
  *
  * \param device_index The sensor to get instance id from
  * \returns the sensor instance ID, or -1 if `device_index` is out of range.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_SensorID SDLCALL SDL_SensorGetDeviceInstanceID(int device_index);
 
@@ -183,6 +195,8 @@ extern DECLSPEC SDL_SensorID SDLCALL SDL_SensorGetDeviceInstanceID(int device_in
  *
  * \param device_index The sensor to open
  * \returns an SDL_Sensor sensor object, or NULL if an error occurred.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_Sensor *SDLCALL SDL_SensorOpen(int device_index);
 
@@ -191,6 +205,8 @@ extern DECLSPEC SDL_Sensor *SDLCALL SDL_SensorOpen(int device_index);
  *
  * \param instance_id The sensor from instance id
  * \returns an SDL_Sensor object.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_Sensor *SDLCALL SDL_SensorFromInstanceID(SDL_SensorID instance_id);
 
@@ -199,6 +215,8 @@ extern DECLSPEC SDL_Sensor *SDLCALL SDL_SensorFromInstanceID(SDL_SensorID instan
  *
  * \param sensor The SDL_Sensor object
  * \returns the sensor name, or NULL if `sensor` is NULL.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC const char *SDLCALL SDL_SensorGetName(SDL_Sensor *sensor);
 
@@ -208,6 +226,8 @@ extern DECLSPEC const char *SDLCALL SDL_SensorGetName(SDL_Sensor *sensor);
  * \param sensor The SDL_Sensor object to inspect
  * \returns the SDL_SensorType type, or `SDL_SENSOR_INVALID` if `sensor` is
  *          NULL.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_SensorType SDLCALL SDL_SensorGetType(SDL_Sensor *sensor);
 
@@ -216,6 +236,8 @@ extern DECLSPEC SDL_SensorType SDLCALL SDL_SensorGetType(SDL_Sensor *sensor);
  *
  * \param sensor The SDL_Sensor object to inspect
  * \returns the sensor platform dependent type, or -1 if `sensor` is NULL.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_SensorGetNonPortableType(SDL_Sensor *sensor);
 
@@ -224,6 +246,8 @@ extern DECLSPEC int SDLCALL SDL_SensorGetNonPortableType(SDL_Sensor *sensor);
  *
  * \param sensor The SDL_Sensor object to inspect
  * \returns the sensor instance ID, or -1 if `sensor` is NULL.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_SensorID SDLCALL SDL_SensorGetInstanceID(SDL_Sensor *sensor);
 
@@ -236,6 +260,8 @@ extern DECLSPEC SDL_SensorID SDLCALL SDL_SensorGetInstanceID(SDL_Sensor *sensor)
  * \param data A pointer filled with the current sensor state
  * \param num_values The number of values to write to data
  * \returns 0 or -1 if an error occurred.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_SensorGetData(SDL_Sensor * sensor, float *data, int num_values);
 
@@ -243,6 +269,8 @@ extern DECLSPEC int SDLCALL SDL_SensorGetData(SDL_Sensor * sensor, float *data,
  * Close a sensor previously opened with SDL_SensorOpen().
  *
  * \param sensor The SDL_Sensor object to close
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC void SDLCALL SDL_SensorClose(SDL_Sensor * sensor);
 
@@ -254,6 +282,8 @@ extern DECLSPEC void SDLCALL SDL_SensorClose(SDL_Sensor * sensor);
  *
  * This needs to be called from the thread that initialized the sensor
  * subsystem.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC void SDLCALL SDL_SensorUpdate(void);
 
diff --git a/include/SDL_shape.h b/include/SDL_shape.h
index 8903e043a..4b27204be 100644
--- a/include/SDL_shape.h
+++ b/include/SDL_shape.h
@@ -62,6 +62,8 @@ extern "C" {
  *              and ::SDL_WINDOW_FULLSCREEN is always unset.
  * \return the window created, or NULL if window creation failed.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_DestroyWindow
  */
 extern DECLSPEC SDL_Window * SDLCALL SDL_CreateShapedWindow(const char *title,unsigned int x,unsigned int y,unsigned int w,unsigned int h,Uint32 flags);
@@ -73,6 +75,8 @@ extern DECLSPEC SDL_Window * SDLCALL SDL_CreateShapedWindow(const char *title,un
  * \return SDL_TRUE if the window is a window that can be shaped, SDL_FALSE if
  *         the window is unshaped or NULL.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateShapedWindow
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IsShapedWindow(const SDL_Window *window);
@@ -116,6 +120,8 @@ typedef struct SDL_WindowShapeMode {
  *         argument, or SDL_NONSHAPEABLE_WINDOW if the SDL_Window given does
  *         not reference a valid shaped window.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WindowShapeMode
  * \sa SDL_GetShapedWindowMode
  */
@@ -133,6 +139,8 @@ extern DECLSPEC int SDLCALL SDL_SetWindowShape(SDL_Window *window,SDL_Surface *s
  *         window, or SDL_WINDOW_LACKS_SHAPE if the SDL_Window given is a
  *         shapeable window currently lacking a shape.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_WindowShapeMode
  * \sa SDL_SetWindowShape
  */
diff --git a/include/SDL_stdinc.h b/include/SDL_stdinc.h
index f43b01399..476e2e393 100644
--- a/include/SDL_stdinc.h
+++ b/include/SDL_stdinc.h
@@ -415,6 +415,8 @@ typedef void (SDLCALL *SDL_free_func)(void *mem);
 
 /**
  * Get the current set of SDL memory functions
+ *
+ * \since This function is available since SDL 2.0.7.
  */
 extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
                                                     SDL_calloc_func *calloc_func,
@@ -423,6 +425,8 @@ extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func
 
 /**
  * Replace SDL's memory allocation functions with a custom set
+ *
+ * \since This function is available since SDL 2.0.7.
  */
 extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
                                                    SDL_calloc_func calloc_func,
@@ -431,6 +435,8 @@ extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
 
 /**
  * Get the number of outstanding (unfreed) allocations
+ *
+ * \since This function is available since SDL 2.0.7.
  */
 extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
 
@@ -650,6 +656,8 @@ extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
 /**
  * This function converts a string between encodings in one pass, returning a
  * string that must be freed with SDL_free() or NULL on error.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
                                                const char *fromcode,
diff --git a/include/SDL_surface.h b/include/SDL_surface.h
index 3b695a1b5..29ebfb663 100644
--- a/include/SDL_surface.h
+++ b/include/SDL_surface.h
@@ -149,6 +149,8 @@ typedef enum
  * \returns the new SDL_Surface structure that is created or NULL if it fails;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRGBSurfaceFrom
  * \sa SDL_CreateRGBSurfaceWithFormat
  * \sa SDL_FreeSurface
@@ -175,6 +177,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface
  * \returns the new SDL_Surface structure that is created or NULL if it fails;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.5.
+ *
  * \sa SDL_CreateRGBSurface
  * \sa SDL_CreateRGBSurfaceFrom
  * \sa SDL_FreeSurface
@@ -204,6 +208,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceWithFormat
  * \returns the new SDL_Surface structure that is created or NULL if it fails;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRGBSurface
  * \sa SDL_CreateRGBSurfaceWithFormat
  * \sa SDL_FreeSurface
@@ -240,6 +246,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
  * \returns the new SDL_Surface structure that is created or NULL if it fails;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.5.
+ *
  * \sa SDL_CreateRGBSurfaceFrom
  * \sa SDL_CreateRGBSurfaceWithFormat
  * \sa SDL_FreeSurface
@@ -254,6 +262,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceWithFormatFrom
  *
  * \param surface the SDL_Surface to free.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateRGBSurface
  * \sa SDL_CreateRGBSurfaceFrom
  * \sa SDL_LoadBMP
@@ -270,6 +280,8 @@ extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface);
  * \param palette the SDL_Palette structure to use
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
                                                   SDL_Palette * palette);
@@ -290,6 +302,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_MUSTLOCK
  * \sa SDL_UnlockSurface
  */
@@ -300,6 +314,8 @@ extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface);
  *
  * \param surface the SDL_Surface structure to be unlocked
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LockSurface
  */
 extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface);
@@ -319,6 +335,8 @@ extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface);
  * \returns a pointer to a new SDL_Surface structure or NULL if there was an
  *          error; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FreeSurface
  * \sa SDL_RWFromFile
  * \sa SDL_LoadBMP
@@ -349,6 +367,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_LoadBMP_RW
  * \sa SDL_SaveBMP
  */
@@ -374,6 +394,8 @@ extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  * \sa SDL_LockSurface
  * \sa SDL_UnlockSurface
@@ -389,6 +411,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceRLE(SDL_Surface * surface,
  * \param surface the SDL_Surface structure to query
  * \returns SDL_TRUE if the surface is RLE enabled, SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.14.
+ *
  * \sa SDL_SetSurfaceRLE
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_HasSurfaceRLE(SDL_Surface * surface);
@@ -412,6 +436,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasSurfaceRLE(SDL_Surface * surface);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  * \sa SDL_GetColorKey
  */
@@ -426,6 +452,8 @@ extern DECLSPEC int SDLCALL SDL_SetColorKey(SDL_Surface * surface,
  * \param surface the SDL_Surface structure to query
  * \return SDL_TRUE if the surface has a color key, SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.9.
+ *
  * \sa SDL_SetColorKey
  * \sa SDL_GetColorKey
  */
@@ -444,6 +472,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_HasColorKey(SDL_Surface * surface);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  * \sa SDL_SetColorKey
  */
@@ -466,6 +496,8 @@ extern DECLSPEC int SDLCALL SDL_GetColorKey(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetSurfaceColorMod
  * \sa SDL_SetSurfaceAlphaMod
  */
@@ -483,6 +515,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceColorMod(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetSurfaceAlphaMod
  * \sa SDL_SetSurfaceColorMod
  */
@@ -503,6 +537,8 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceColorMod(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetSurfaceAlphaMod
  * \sa SDL_SetSurfaceColorMod
  */
@@ -517,6 +553,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceAlphaMod(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetSurfaceColorMod
  * \sa SDL_SetSurfaceAlphaMod
  */
@@ -535,6 +573,8 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceAlphaMod(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetSurfaceBlendMode
  */
 extern DECLSPEC int SDLCALL SDL_SetSurfaceBlendMode(SDL_Surface * surface,
@@ -548,6 +588,8 @@ extern DECLSPEC int SDLCALL SDL_SetSurfaceBlendMode(SDL_Surface * surface,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetSurfaceBlendMode
  */
 extern DECLSPEC int SDLCALL SDL_GetSurfaceBlendMode(SDL_Surface * surface,
@@ -568,6 +610,8 @@ extern DECLSPEC int SDLCALL SDL_GetSurfaceBlendMode(SDL_Surface * surface,
  * \returns SDL_TRUE if the rectangle intersects the surface, otherwise
  *          SDL_FALSE and blits will be completely clipped.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  * \sa SDL_GetClipRect
  */
@@ -585,6 +629,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface,
  * \param rect an SDL_Rect structure filled in with the clipping rectangle for
  *             the surface
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  * \sa SDL_SetClipRect
  */
@@ -618,6 +664,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_DuplicateSurface(SDL_Surface * surface)
  * \returns the new SDL_Surface structure that is created or NULL if it fails;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocFormat
  * \sa SDL_ConvertSurfaceFormat
  * \sa SDL_CreateRGBSurface
@@ -641,6 +689,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface
  * \returns the new SDL_Surface structure that is created or NULL if it fails;
  *          call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AllocFormat
  * \sa SDL_ConvertSurface
  * \sa SDL_CreateRGBSurface
@@ -661,6 +711,8 @@ extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurfaceFormat
  * \param dst_pitch the pitch of the destination pixels, in bytes
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_ConvertPixels(int width, int height,
                                               Uint32 src_format,
@@ -687,6 +739,8 @@ extern DECLSPEC int SDLCALL SDL_ConvertPixels(int width, int height,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FillRects
  */
 extern DECLSPEC int SDLCALL SDL_FillRect
@@ -711,6 +765,8 @@ extern DECLSPEC int SDLCALL SDL_FillRect
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_FillRect
  */
 extern DECLSPEC int SDLCALL SDL_FillRects
@@ -782,6 +838,8 @@ extern DECLSPEC int SDLCALL SDL_FillRects
  * SDL_UpperBlit() has been replaced by SDL_BlitSurface(), which is merely a
  * macro for this function with a less confusing name.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  */
 extern DECLSPEC int SDLCALL SDL_UpperBlit
@@ -806,6 +864,8 @@ extern DECLSPEC int SDLCALL SDL_UpperBlit
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitSurface
  */
 extern DECLSPEC int SDLCALL SDL_LowerBlit
@@ -818,6 +878,8 @@ extern DECLSPEC int SDLCALL SDL_LowerBlit
  * format.
  *
  * Please use SDL_BlitScaled() instead.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface * src,
                                             const SDL_Rect * srcrect,
@@ -843,6 +905,8 @@ extern DECLSPEC int SDLCALL SDL_SoftStretchLinear(SDL_Surface * src,
  * SDL_UpperBlitScaled() has been replaced by SDL_BlitScaled(), which is
  * merely a macro for this function with a less confusing name.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitScaled
  */
 extern DECLSPEC int SDLCALL SDL_UpperBlitScaled
@@ -864,6 +928,8 @@ extern DECLSPEC int SDLCALL SDL_UpperBlitScaled
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_BlitScaled
  */
 extern DECLSPEC int SDLCALL SDL_LowerBlitScaled
@@ -872,17 +938,23 @@ extern DECLSPEC int SDLCALL SDL_LowerBlitScaled
 
 /**
  * Set the YUV conversion mode
+ *
+ * \since This function is available since SDL 2.0.8.
  */
 extern DECLSPEC void SDLCALL SDL_SetYUVConversionMode(SDL_YUV_CONVERSION_MODE mode);
 
 /**
  * Get the YUV conversion mode
+ *
+ * \since This function is available since SDL 2.0.8.
  */
 extern DECLSPEC SDL_YUV_CONVERSION_MODE SDLCALL SDL_GetYUVConversionMode(void);
 
 /**
  * Get the YUV conversion mode, returning the correct mode for the resolution
  * when the current conversion mode is SDL_YUV_CONVERSION_AUTOMATIC
+ *
+ * \since This function is available since SDL 2.0.8.
  */
 extern DECLSPEC SDL_YUV_CONVERSION_MODE SDLCALL SDL_GetYUVConversionModeForResolution(int width, int height);
 
diff --git a/include/SDL_system.h b/include/SDL_system.h
index 433d0bf87..f54300dc6 100644
--- a/include/SDL_system.h
+++ b/include/SDL_system.h
@@ -51,7 +51,7 @@ typedef void (SDLCALL * SDL_WindowsMessageHook)(void *userdata, void *hWnd, unsi
  * \param callback The SDL_WindowsMessageHook function to call.
  * \param userdata a pointer to pass to every iteration of `callback`
  *
- * \since This function is available since SDL 2.0.16.
+ * \since This function is available since SDL 2.0.4.
  */
 extern DECLSPEC void SDLCALL SDL_SetWindowsMessageHook(SDL_WindowsMessageHook callback, void *userdata);
 
@@ -136,6 +136,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_DXGIGetOutputInfo( int displayIndex, int *a
  * \param threadID the Unix thread ID to change priority of.
  * \param priority The new, Unix-specific, priority value.
  * \returns 0 on success, or -1 on error.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC int SDLCALL SDL_LinuxSetThreadPriority(Sint64 threadID, int priority);
  
@@ -271,6 +273,8 @@ extern DECLSPEC void * SDLCALL SDL_AndroidGetActivity(void);
  * - API level 10: Android 2.3.3
  *
  * \returns the Android API level.
+ *
+ * \since This function is available since SDL 2.0.12.
  */
 extern DECLSPEC int SDLCALL SDL_GetAndroidSDKVersion(void);
 
@@ -278,6 +282,8 @@ extern DECLSPEC int SDLCALL SDL_GetAndroidSDKVersion(void);
  * Query if the application is running on Android TV.
  *
  * \returns SDL_TRUE if this is Android TV, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.8.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IsAndroidTV(void);
 
@@ -285,6 +291,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_IsAndroidTV(void);
  * Query if the application is running on a Chromebook.
  *
  * \returns SDL_TRUE if this is a Chromebook, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IsChromebook(void);
 
@@ -292,11 +300,15 @@ extern DECLSPEC SDL_bool SDLCALL SDL_IsChromebook(void);
  * Query if the application is running on a Samsung DeX docking station.
  *
  * \returns SDL_TRUE if this is a DeX docking station, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IsDeXMode(void);
 
 /**
  * Trigger the Android system back button behavior.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC void SDLCALL SDL_AndroidBackButton(void);
 
@@ -367,6 +379,8 @@ extern DECLSPEC const char * SDLCALL SDL_AndroidGetExternalStoragePath(void);
  *
  * \param permission The permission to request.
  * \returns SDL_TRUE if the permission was granted, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.14.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_AndroidRequestPermission(const char *permission);
 
@@ -493,6 +507,8 @@ extern DECLSPEC const char * SDLCALL SDL_WinRTGetFSPathUTF8(SDL_WinRT_Path pathT
  * Detects the device family of WinRT plattform at runtime.
  *
  * \returns a value from the SDL_WinRT_DeviceFamily enum.
+ *
+ * \since This function is available since SDL 2.0.8.
  */
 extern DECLSPEC SDL_WinRT_DeviceFamily SDLCALL SDL_WinRTGetDeviceFamily();
 
@@ -504,6 +520,8 @@ extern DECLSPEC SDL_WinRT_DeviceFamily SDLCALL SDL_WinRTGetDeviceFamily();
  * If SDL can't determine this, it will return SDL_FALSE.
  *
  * \returns SDL_TRUE if the device is a tablet, SDL_FALSE otherwise.
+ *
+ * \since This function is available since SDL 2.0.9.
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_IsTablet(void);
 
diff --git a/include/SDL_thread.h b/include/SDL_thread.h
index 5626447a8..10ec43b95 100644
--- a/include/SDL_thread.h
+++ b/include/SDL_thread.h
@@ -199,6 +199,8 @@ SDL_CreateThreadWithStackSize(SDL_ThreadFunction fn, const char *name, const siz
  *          new thread could not be created; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateThreadWithStackSize
  * \sa SDL_WaitThread
  */
@@ -244,6 +246,8 @@ SDL_CreateThread(SDL_ThreadFunction fn, const char *name, void *data);
  *          new thread could not be created; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.9.
+ *
  * \sa SDL_WaitThread
  */
 extern DECLSPEC SDL_Thread *SDLCALL
@@ -261,6 +265,8 @@ SDL_CreateThreadWithStackSize(SDL_ThreadFunction fn, const char *name, const siz
  * \returns a pointer to a UTF-8 string that names the specified thread, or
  *          NULL if it doesn't have a name.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateThread
  */
 extern DECLSPEC const char *SDLCALL SDL_GetThreadName(SDL_Thread *thread);
@@ -277,6 +283,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetThreadName(SDL_Thread *thread);
  *
  * \returns the ID of the current thread.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetThreadID
  */
 extern DECLSPEC SDL_threadID SDLCALL SDL_ThreadID(void);
@@ -292,6 +300,8 @@ extern DECLSPEC SDL_threadID SDLCALL SDL_ThreadID(void);
  * \returns the ID of the specified thread, or the ID of the current thread if
  *          `thread` is NULL.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ThreadID
  */
 extern DECLSPEC SDL_threadID SDLCALL SDL_GetThreadID(SDL_Thread * thread);
@@ -306,6 +316,8 @@ extern DECLSPEC SDL_threadID SDLCALL SDL_GetThreadID(SDL_Thread * thread);
  * \param priority the SDL_ThreadPriority to set
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC int SDLCALL SDL_SetThreadPriority(SDL_ThreadPriority priority);
 
@@ -337,6 +349,8 @@ extern DECLSPEC int SDLCALL SDL_SetThreadPriority(SDL_ThreadPriority priority);
  *               from the thread function by its 'return', or NULL to not
  *               receive such value back.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateThread
  * \sa SDL_DetachThread
  */
@@ -434,6 +448,8 @@ extern DECLSPEC int SDLCALL SDL_TLSSet(SDL_TLSID id, const void *value, void (SD
 
 /**
  * Cleanup all TLS data for this thread.
+ *
+ * \since This function is available since SDL 2.0.16.
  */
 extern DECLSPEC void SDLCALL SDL_TLSCleanup(void);
 
diff --git a/include/SDL_timer.h b/include/SDL_timer.h
index b23686bc3..dca71f3c5 100644
--- a/include/SDL_timer.h
+++ b/include/SDL_timer.h
@@ -45,6 +45,8 @@ extern "C" {
  * \returns an unsigned 32-bit value representing the number of milliseconds
  *          since the SDL library initialized.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_TICKS_PASSED
  */
 extern DECLSPEC Uint32 SDLCALL SDL_GetTicks(void);
@@ -78,6 +80,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_GetTicks(void);
  *
  * \returns the current counter value.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetPerformanceFrequency
  */
 extern DECLSPEC Uint64 SDLCALL SDL_GetPerformanceCounter(void);
@@ -101,6 +105,8 @@ extern DECLSPEC Uint64 SDLCALL SDL_GetPerformanceFrequency(void);
  * scheduling.
  *
  * \param ms the number of milliseconds to delay
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_Delay(Uint32 ms);
 
@@ -147,6 +153,8 @@ typedef int SDL_TimerID;
  * \returns a timer ID or 0 if an error occurs; call SDL_GetError() for more
  *          information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RemoveTimer
  */
 extern DECLSPEC SDL_TimerID SDLCALL SDL_AddTimer(Uint32 interval,
@@ -160,6 +168,8 @@ extern DECLSPEC SDL_TimerID SDLCALL SDL_AddTimer(Uint32 interval,
  * \returns SDL_TRUE if the timer is removed or SDL_FALSE if the timer wasn't
  *          found.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_AddTimer
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_RemoveTimer(SDL_TimerID id);
diff --git a/include/SDL_touch.h b/include/SDL_touch.h
index f370a6730..f9a8545b8 100644
--- a/include/SDL_touch.h
+++ b/include/SDL_touch.h
@@ -97,6 +97,8 @@ extern DECLSPEC SDL_TouchID SDLCALL SDL_GetTouchDevice(int index);
 
 /**
  * Get the type of the given touch device.
+ *
+ * \since This function is available since SDL 2.0.10.
  */
 extern DECLSPEC SDL_TouchDeviceType SDLCALL SDL_GetTouchDeviceType(SDL_TouchID touchID);
 
@@ -123,6 +125,8 @@ extern DECLSPEC int SDLCALL SDL_GetNumTouchFingers(SDL_TouchID touchID);
  * \returns a pointer to the SDL_Finger object or NULL if no object at the
  *          given ID and index could be found.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_RecordGesture
  */
 extern DECLSPEC SDL_Finger * SDLCALL SDL_GetTouchFinger(SDL_TouchID touchID, int index);
diff --git a/include/SDL_version.h b/include/SDL_version.h
index 3746fb221..cdd4bcb4f 100644
--- a/include/SDL_version.h
+++ b/include/SDL_version.h
@@ -118,6 +118,8 @@ typedef struct SDL_version
  *
  * \param ver the SDL_version structure that contains the version information
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRevision
  */
 extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
@@ -145,6 +147,8 @@ extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
  * \returns an arbitrary string, uniquely identifying the exact revision of
  *          the SDL library in use.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetVersion
  */
 extern DECLSPEC const char *SDLCALL SDL_GetRevision(void);
@@ -166,6 +170,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetRevision(void);
  *
  * \returns zero, always, in modern SDL releases.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetRevision
  */
 extern SDL_DEPRECATED DECLSPEC int SDLCALL SDL_GetRevisionNumber(void);
diff --git a/include/SDL_video.h b/include/SDL_video.h
index 75bae55c8..f0132621e 100644
--- a/include/SDL_video.h
+++ b/include/SDL_video.h
@@ -286,6 +286,8 @@ typedef enum
  * \returns a number >= 1 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetVideoDriver
  */
 extern DECLSPEC int SDLCALL SDL_GetNumVideoDrivers(void);
@@ -299,6 +301,8 @@ extern DECLSPEC int SDLCALL SDL_GetNumVideoDrivers(void);
  * \param index the index of a video driver
  * \returns the name of the video driver with the given **index**.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetNumVideoDrivers
  */
 extern DECLSPEC const char *SDLCALL SDL_GetVideoDriver(int index);
@@ -325,6 +329,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetVideoDriver(int index);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetNumVideoDrivers
  * \sa SDL_GetVideoDriver
  * \sa SDL_InitSubSystem
@@ -337,6 +343,8 @@ extern DECLSPEC int SDLCALL SDL_VideoInit(const char *driver_name);
  *
  * This function closes all windows, and restores the original video mode.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_VideoInit
  */
 extern DECLSPEC void SDLCALL SDL_VideoQuit(void);
@@ -390,6 +398,8 @@ extern DECLSPEC const char * SDLCALL SDL_GetDisplayName(int displayIndex);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetNumVideoDisplays
  */
 extern DECLSPEC int SDLCALL SDL_GetDisplayBounds(int displayIndex, SDL_Rect * rect);
@@ -458,6 +468,8 @@ extern DECLSPEC int SDLCALL SDL_GetDisplayDPI(int displayIndex, float * ddpi, fl
  * \returns The SDL_DisplayOrientation enum value of the display, or
  *          `SDL_ORIENTATION_UNKNOWN` if it isn't available.
  *
+ * \since This function is available since SDL 2.0.9.
+ *
  * \sa SDL_GetNumVideoDisplays
  */
 extern DECLSPEC SDL_DisplayOrientation SDLCALL SDL_GetDisplayOrientation(int displayIndex);
@@ -497,6 +509,8 @@ extern DECLSPEC int SDLCALL SDL_GetNumDisplayModes(int displayIndex);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetNumDisplayModes
  */
 extern DECLSPEC int SDLCALL SDL_GetDisplayMode(int displayIndex, int modeIndex,
@@ -516,6 +530,8 @@ extern DECLSPEC int SDLCALL SDL_GetDisplayMode(int displayIndex, int modeIndex,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetCurrentDisplayMode
  * \sa SDL_GetDisplayMode
  * \sa SDL_SetWindowDisplayMode
@@ -536,6 +552,8 @@ extern DECLSPEC int SDLCALL SDL_GetDesktopDisplayMode(int displayIndex, SDL_Disp
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetDesktopDisplayMode
  * \sa SDL_GetDisplayMode
  * \sa SDL_GetNumVideoDisplays
@@ -562,6 +580,8 @@ extern DECLSPEC int SDLCALL SDL_GetCurrentDisplayMode(int displayIndex, SDL_Disp
  * \returns the passed in value `closest` or NULL if no matching video mode
  *          was available; call SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetDisplayMode
  * \sa SDL_GetNumDisplayModes
  */
@@ -575,6 +595,8 @@ extern DECLSPEC SDL_DisplayMode * SDLCALL SDL_GetClosestDisplayMode(int displayI
  *          success or a negative error code on failure; call SDL_GetError()
  *          for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetDisplayBounds
  * \sa SDL_GetNumVideoDisplays
  */
@@ -594,6 +616,8 @@ extern DECLSPEC int SDLCALL SDL_GetWindowDisplayIndex(SDL_Window * window);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowDisplayMode
  * \sa SDL_SetWindowFullscreen
  */
@@ -609,6 +633,8 @@ extern DECLSPEC int SDLCALL SDL_SetWindowDisplayMode(SDL_Window * window,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowDisplayMode
  * \sa SDL_SetWindowFullscreen
  */
@@ -624,6 +650,9 @@ extern DECLSPEC int SDLCALL SDL_GetWindowDisplayMode(SDL_Window * window,
  * \param size the size of the ICC profile
  * \returns the raw ICC profile data on success or NULL on failure; call
  *          SDL_GetError() for more information.
+ *
+ * \since This function is available since SDL git HEAD (in development, not
+ *        in an official release yet).
  */
 extern DECLSPEC void* SDLCALL SDL_GetWindowICCProfile(SDL_Window * window, size_t* size);
 
@@ -634,6 +663,8 @@ extern DECLSPEC void* SDLCALL SDL_GetWindowICCProfile(SDL_Window * window, size_
  * \returns the pixel format of the window on success or
  *          SDL_PIXELFORMAT_UNKNOWN on failure; call SDL_GetError() for more
  *          information.
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC Uint32 SDLCALL SDL_GetWindowPixelFormat(SDL_Window * window);
 
@@ -721,6 +752,8 @@ extern DECLSPEC SDL_Window * SDLCALL SDL_CreateWindow(const char *title,
  * \returns the window that was created or NULL on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateWindow
  * \sa SDL_DestroyWindow
  */
@@ -752,6 +785,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_GetWindowID(SDL_Window * window);
  * \returns the window associated with `id` or NULL if it doesn't exist; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowID
  */
 extern DECLSPEC SDL_Window * SDLCALL SDL_GetWindowFromID(Uint32 id);
@@ -762,6 +797,8 @@ extern DECLSPEC SDL_Window * SDLCALL SDL_GetWindowFromID(Uint32 id);
  * \param window the window to query
  * \returns a mask of the SDL_WindowFlags associated with `window`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateWindow
  * \sa SDL_HideWindow
  * \sa SDL_MaximizeWindow
@@ -780,6 +817,8 @@ extern DECLSPEC Uint32 SDLCALL SDL_GetWindowFlags(SDL_Window * window);
  * \param window the window to change
  * \param title the desired window title in UTF-8 format
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowTitle
  */
 extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_Window * window,
@@ -792,6 +831,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_Window * window,
  * \returns the title of the window in UTF-8 format or "" if there is no
  *          title.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowTitle
  */
 extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_Window * window);
@@ -801,6 +842,8 @@ extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_Window * window);
  *
  * \param window the window to change
  * \param icon an SDL_Surface structure containing the icon for the window
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Window * window,
                                                SDL_Surface * icon);
@@ -815,6 +858,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Window * window,
  * \param userdata the associated pointer
  * \returns the previous value associated with `name`.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowData
  */
 extern DECLSPEC void* SDLCALL SDL_SetWindowData(SDL_Window * window,
@@ -828,6 +873,8 @@ extern DECLSPEC void* SDLCALL SDL_SetWindowData(SDL_Window * window,
  * \param name the name of the pointer
  * \returns the value associated with `name`.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowData
  */
 extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_Window * window,
@@ -844,6 +891,8 @@ extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_Window * window,
  * \param y the y coordinate of the window in screen coordinates, or
  *          `SDL_WINDOWPOS_CENTERED` or `SDL_WINDOWPOS_UNDEFINED`
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowPosition
  */
 extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_Window * window,
@@ -861,6 +910,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_Window * window,
  * \param y a pointer filled in with the y position of the window, in screen
  *          coordinates, may be NULL
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowPosition
  */
 extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_Window * window,
@@ -883,6 +934,8 @@ extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_Window * window,
  * \param h the height of the window in pixels, in screen coordinates, must be
  *          > 0
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowSize
  * \sa SDL_SetWindowDisplayMode
  */
@@ -907,6 +960,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_Window * window, int w,
  * \param h a pointer filled in with the height of the window, in screen
  *          coordinates, may be NULL
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_GetDrawableSize
  * \sa SDL_Vulkan_GetDrawableSize
  * \sa SDL_SetWindowSize
@@ -957,6 +1012,8 @@ extern DECLSPEC int SDLCALL SDL_GetWindowBordersSize(SDL_Window * window,
  * \param min_w the minimum width of the window in pixels
  * \param min_h the minimum height of the window in pixels
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowMinimumSize
  * \sa SDL_SetWindowMaximumSize
  */
@@ -972,6 +1029,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowMinimumSize(SDL_Window * window,
  * \param h a pointer filled in with the minimum height of the window, may be
  *          NULL
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowMaximumSize
  * \sa SDL_SetWindowMinimumSize
  */
@@ -985,6 +1044,8 @@ extern DECLSPEC void SDLCALL SDL_GetWindowMinimumSize(SDL_Window * window,
  * \param max_w the maximum width of the window in pixels
  * \param max_h the maximum height of the window in pixels
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowMaximumSize
  * \sa SDL_SetWindowMinimumSize
  */
@@ -1000,6 +1061,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowMaximumSize(SDL_Window * window,
  * \param h a pointer filled in with the maximum height of the window, may be
  *          NULL
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowMinimumSize
  * \sa SDL_SetWindowMaximumSize
  */
@@ -1066,6 +1129,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowAlwaysOnTop(SDL_Window * window,
  *
  * \param window the window to show
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_HideWindow
  * \sa SDL_RaiseWindow
  */
@@ -1076,6 +1141,8 @@ extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_Window * window);
  *
  * \param window the window to hide
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_ShowWindow
  */
 extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_Window * window);
@@ -1084,6 +1151,8 @@ extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_Window * window);
  * Raise a window above other windows and set the input focus.
  *
  * \param window the window to raise
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_Window * window);
 
@@ -1092,6 +1161,8 @@ extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_Window * window);
  *
  * \param window the window to maximize
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_MinimizeWindow
  * \sa SDL_RestoreWindow
  */
@@ -1102,6 +1173,8 @@ extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_Window * window);
  *
  * \param window the window to minimize
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_MaximizeWindow
  * \sa SDL_RestoreWindow
  */
@@ -1112,6 +1185,8 @@ extern DECLSPEC void SDLCALL SDL_MinimizeWindow(SDL_Window * window);
  *
  * \param window the window to restore
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_MaximizeWindow
  * \sa SDL_MinimizeWindow
  */
@@ -1155,6 +1230,8 @@ extern DECLSPEC int SDLCALL SDL_SetWindowFullscreen(SDL_Window * window,
  * \returns the surface associated with the window, or NULL on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_UpdateWindowSurface
  * \sa SDL_UpdateWindowSurfaceRects
  */
@@ -1172,6 +1249,8 @@ extern DECLSPEC SDL_Surface * SDLCALL SDL_GetWindowSurface(SDL_Window * window);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowSurface
  * \sa SDL_UpdateWindowSurfaceRects
  */
@@ -1192,6 +1271,8 @@ extern DECLSPEC int SDLCALL SDL_UpdateWindowSurface(SDL_Window * window);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowSurface
  * \sa SDL_UpdateWindowSurface
  */
@@ -1210,6 +1291,8 @@ extern DECLSPEC int SDLCALL SDL_UpdateWindowSurfaceRects(SDL_Window * window,
  * \param window the window for which the input grab mode should be set
  * \param grabbed SDL_TRUE to grab input or SDL_FALSE to release input
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetGrabbedWindow
  * \sa SDL_GetWindowGrab
  */
@@ -1239,6 +1322,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowKeyboardGrab(SDL_Window * window,
  *
  * \param window The window for which the mouse grab mode should be set.
  *
+ * \since This function is available since SDL 2.0.16.
+ *
  * \sa SDL_GetWindowMouseGrab
  * \sa SDL_SetWindowKeyboardGrab
  * \sa SDL_SetWindowGrab
@@ -1252,6 +1337,8 @@ extern DECLSPEC void SDLCALL SDL_SetWindowMouseGrab(SDL_Window * window,
  * \param window the window to query
  * \returns SDL_TRUE if input is grabbed, SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowGrab
  */
 extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowGrab(SDL_Window * window);
@@ -1262,6 +1349,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowGrab(SDL_Window * window);
  * \param window the window to query
  * \returns SDL_TRUE if keyboard is grabbed, and SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.16.
+ *
  * \sa SDL_SetWindowKeyboardGrab
  * \sa SDL_GetWindowGrab
  */
@@ -1273,6 +1362,8 @@ extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowKeyboardGrab(SDL_Window * window);
  * \param window the window to query
  * \returns SDL_TRUE if mouse is grabbed, and SDL_FALSE otherwise.
  *
+ * \since This function is available since SDL 2.0.16.
+ *
  * \sa SDL_SetWindowKeyboardGrab
  * \sa SDL_GetWindowGrab
  */
@@ -1311,6 +1402,8 @@ extern DECLSPEC SDL_Window * SDLCALL SDL_GetGrabbedWindow(void);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowBrightness
  * \sa SDL_SetWindowGammaRamp
  */
@@ -1329,6 +1422,8 @@ extern DECLSPEC int SDLCALL SDL_SetWindowBrightness(SDL_Window * window, float b
  * \returns the brightness for the display where 0.0 is completely dark and
  *          1.0 is normal brightness.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowBrightness
  */
 extern DECLSPEC float SDLCALL SDL_GetWindowBrightness(SDL_Window * window);
@@ -1428,6 +1523,8 @@ extern DECLSPEC int SDLCALL SDL_SetWindowInputFocus(SDL_Window * window);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GetWindowGammaRamp
  */
 extern DECLSPEC int SDLCALL SDL_SetWindowGammaRamp(SDL_Window * window,
@@ -1454,6 +1551,8 @@ extern DECLSPEC int SDLCALL SDL_SetWindowGammaRamp(SDL_Window * window,
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_SetWindowGammaRamp
  */
 extern DECLSPEC int SDLCALL SDL_GetWindowGammaRamp(SDL_Window * window,
@@ -1558,6 +1657,8 @@ extern DECLSPEC int SDLCALL SDL_FlashWindow(SDL_Window * window, SDL_FlashOperat
  *
  * \param window the window to destroy
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_CreateWindow
  * \sa SDL_CreateWindowFrom
  */
@@ -1626,6 +1727,8 @@ extern DECLSPEC void SDLCALL SDL_DisableScreenSaver(void);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_GetProcAddress
  * \sa SDL_GL_UnloadLibrary
  */
@@ -1676,6 +1779,8 @@ extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path);
  * \returns a pointer to the named OpenGL function. The returned pointer
  *          should be cast to the appropriate function signature.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_ExtensionSupported
  * \sa SDL_GL_LoadLibrary
  * \sa SDL_GL_UnloadLibrary
@@ -1685,6 +1790,8 @@ extern DECLSPEC void *SDLCALL SDL_GL_GetProcAddress(const char *proc);
 /**
  * Unload the OpenGL library previously loaded by SDL_GL_LoadLibrary().
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_LoadLibrary
  */
 extern DECLSPEC void SDLCALL SDL_GL_UnloadLibrary(void);
@@ -1734,6 +1841,8 @@ extern DECLSPEC void SDLCALL SDL_GL_ResetAttributes(void);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_GetAttribute
  * \sa SDL_GL_ResetAttributes
  */
@@ -1747,6 +1856,8 @@ extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value);
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_ResetAttributes
  * \sa SDL_GL_SetAttribute
  */
@@ -1767,6 +1878,8 @@ extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int *value);
  * \returns the OpenGL context associated with `window` or NULL on error; call
  *          SDL_GetError() for more details.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_DeleteContext
  * \sa SDL_GL_MakeCurrent
  */
@@ -1783,6 +1896,8 @@ extern DECLSPEC SDL_GLContext SDLCALL SDL_GL_CreateContext(SDL_Window *
  * \returns 0 on success or a negative error code on failure; call
  *          SDL_GetError() for more information.
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_CreateContext
  */
 extern DECLSPEC int SDLCALL SDL_GL_MakeCurrent(SDL_Window * window,
@@ -1895,6 +2010,8 @@ extern DECLSPEC int SDLCALL SDL_GL_GetSwapInterval(void);
  * extra.
  *
  * \param window the window to change
+ *
+ * \since This function is available since SDL 2.0.0.
  */
 extern DECLSPEC void SDLCALL SDL_GL_SwapWindow(SDL_Window * window);
 
@@ -1903,6 +2020,8 @@ extern DECLSPEC void SDLCALL SDL_GL_SwapWindow(SDL_Window * window);
  *
  * \param context the OpenGL context to be deleted
  *
+ * \since This function is available since SDL 2.0.0.
+ *
  * \sa SDL_GL_CreateContext
  */
 extern DECLSPEC void SDLCALL SDL_GL_DeleteContext(SDL_GLContext context);
diff --git a/include/SDL_vulkan.h b/include/SDL_vulkan.h
index 006c5aaf8..ab86a0b86 100644
--- a/include/SDL_vulkan.h
+++ b/include/SDL_vulkan.h
@@ -101,7 +101,7 @@ typedef VkSurfaceKHR SDL_vulkanSurface; /* for compatibility with Tizen */
  * \returns 0 on success or -1 if the library couldn't be loaded; call
  *          SDL_GetError() for more information.
  *
- * \since This function is available in SDL 2.0.8
+ * \since This function is available since SDL 2.0.6.
  *
  * \sa SDL_Vulkan_GetVkInstanceProcAddr
  * \sa SDL_Vulkan_UnloadLibrary
@@ -115,13 +115,15 @@ extern DECLSPEC int SDLCALL SDL_Vulkan_LoadLibrary(const char *path);
  * creating an SDL_Window with the `SDL_WINDOW_VULKAN` flag.
  *
  * \returns the function pointer for `vkGetInstanceProcAddr` or NULL on error.
+ *
+ * \since This function is available since SDL 2.0.6.
  */
 extern DECLSPEC void *SDLCALL SDL_Vulkan_GetVkGetInstanceProcAddr(void);
 
 /**
  * Unload the Vulkan library previously loaded by SDL_Vulkan_LoadLibrary()
  *
- * \since This function is available in SDL 2.0.8
+ * \since This function is available since SDL 2.0.6.
  *
  * \sa SDL_Vulkan_LoadLibrary
  */
@@ -151,7 +153,7 @@ extern DECLSPEC void SDLCALL SDL_Vulkan_UnloadLibrary(void);
  *               Vulkan instance extensions
  * \returns SDL_TRUE on success, SDL_FALSE on error.
  *
- * \since This function is available in SDL 2.0.8
+ * \since This function is available since SDL 2.0.6.
  *
  * \sa SDL_Vulkan_CreateSurface
  */
@@ -172,7 +174,7 @@ extern DECLSPEC SDL_bool SDLCALL SDL_Vulkan_GetInstanceExtensions(SDL_Window *wi
  *                created surface
  * \returns SDL_TRUE on success, SDL_FALSE on error.
  *
- * \since This function is available in SDL 2.0.8
+ * \since This function is available since SDL 2.0.6.
  *
  * \sa SDL_Vulkan_GetInstanceExtensions
  * \sa SDL_Vulkan_GetDrawableSize
@@ -193,7 +195,7 @@ extern DECLSPEC SDL_bool SDLCALL SDL_Vulkan_CreateSurface(SDL_Window *window,
  * \param w Pointer to the variable to write the width to or NULL
  * \param h Pointer to the variable to write the height to or NULL
  *
- * \since This function is available in SDL 2.0.8
+ * \since This function is available since SDL 2.0.6.
  *
  * \sa SDL_GetWindowSize
  * \sa SDL_CreateWindow