diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37882ec..e735fbe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,12 @@ Types of changes
 - `Fixed` for any bug fixes.
 - `Security` in case of vulnerabilities.
 
+## [unreleased]
+
+### Added
+
+* Added an option to enable the [WebAssembly memory64 proposal](https://github.com/webassembly/memory64) - thanks @samcamwilliams
+
 ## [0.9.1 - 2024-07-27]
 
 Same as 0.9.1, but with correct checksum for precompiled binaries