diff --git a/CHANGELOG.md b/CHANGELOG.md
index e058137..2fb192d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 - Changed: [[#293](https://github.com/ethereum/evmc/pull/293)]
   In C++ API `evmc::result::raw()` renamed to `evmc::result::release_raw()`.
+- Changed: [[#311](https://github.com/ethereum/evmc/pull/311)]
+  In `evmc_load_and_create()` the `error_code` is optional (can be `NULL`).
 - Fixed:
   [[#261](https://github.com/ethereum/evmc/issues/261),
   [#263](https://github.com/ethereum/evmc/pull/263)]