diff --git a/ChangeLog b/ChangeLog
index 4aebfa5..e96663b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -98,6 +98,12 @@ protobuf-c (1.0.0) UNRELEASED
   * Preserve case in enum value names generated by protoc-c (Issue #129).
     Reported by Oleg Efimov.
 
+  * Add library functions protobuf_c_version() and protobuf_c_version_string()
+    for retrieving the version of the compiled library, and header macros
+    PROTOBUF_C_VERSION and PROTOBUF_C_VERSION_STRING for retrieving the
+    version of the header file. This replaces the interfaces for retrieving
+    the protobuf-c version numbers in Issue #53.
+
   * Update copyright and license statements throughout. The original
     protobuf code released by Google was relicensed from Apache-2.0 to
     BSD-3-Clause. Dave Benson also converted his license from BSD-3-Clause