diff --git a/ChangeLog b/ChangeLog
index 0a9dc4f..7855a40 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,9 @@
      MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
    * Fix a bug in the update function for SSL ticket keys which previously
      invalidated keys of a lifetime of less than a 1s. Fixes #1968.
+   * Zeroize memory used for reassembling handshake messages after use.
+   * Use `mbedtls_zeroize()` instead of `memset()` for zeroization of
+     sensitive data in the example programs aescrypt2 and crypt_and_hash.
 
 Changes
    * Add tests for session resumption in DTLS.