diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4db58884..e30b43b3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changes
 - Many of the places that originally disabled IRQs now use the `sync` module, reducing the chance of missed interrupts.
 - HashMap iterators now implement `size_hint` which should result in slightly better generation of code using those iterators.
+- Sound frequency is no longer a crate feature, instead set when initialising the sound mixer.
 
 ### Fixed
 - Fixed the fast magnitude function in agb_fixnum. This is also used in fast_normalise. Previously only worked for positive (x, y).