diff --git a/ChangeLog b/ChangeLog
index be28645d6..5703b960e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
+= mbed TLS x.xx.x branch released xxxx-xx-xx
+
+Bugfix
+   * Fix signed-to-unsigned integer conversion warning
+     in X.509 module. Fixes #2212.
+
 = mbed TLS 2.16.0 branch released 2018-12-21
 
 Features