diff --git a/CHANGELOG.md b/CHANGELOG.md
index f23f1f5fa4..fbe52a8e2a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,7 +12,7 @@
 * Made WebSocket error logging more verbose when using `AppConfiguration.UseManagedWebSockets = true`. [#3459](https://github.com/realm/realm-dotnet/pull/3459)
 
 ### Fixed
-* None
+* Added an error that is raised when interface based Realm classes are used with a language version lower than 8.0. At the same time, removed the use of `not` in the generated code, so that it's compatible with a minumum C# version of 8.0. (Issue [#3265](https://github.com/realm/realm-dotnet/issues/3265))
 
 ### Compatibility
 * Realm Studio: 13.0.0 or later.