Add fix for to ChangeLog
@@ -19,6 +19,7 @@ Features
Bugfix
* Remove macros from compat-1.3.h that correspond to deleted items from most
recent versions of the library. Found by Kyle Keen.
+ * Fixed issue in mutexes to failing to initialise. #667
= mbed TLS 2.4.2 branch released 2017-03-08
