diff --git a/ChangeLog b/ChangeLog
index 45c07fe04..1506b68b0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
+= mbed TLS x.x.x branch released xxxx-xx-xx
+
+Changes
+   * Allow configuring the prefix operator for the archiver tool when compiling
+     the library using the makefile. Found and fixed by Alex Hixon.
+   * Allow configuring the shared library extension by setting the DLEXT
+     variable when using the project makefile.
+
 = mbed TLS 2.1.11 branch released 2018-03-16
 
 Default behavior changes