diff --git a/releasenotes.md b/releasenotes.md
index a67c127e3..943b0d2ae 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -6,6 +6,7 @@
 - Added const enums: `enum Foo : const`. Behaves like C enums but may be any type.
 - Casting to / from an enum is now possible again. No need to use `.ordinal` and `.from_ordinal`.
 - Inline associated enum values are deprecated, use `--use-old-enums` to re-enable them.
+- `$typeof` may return a compile time type.
 
 ### Fixes
 - mkdir/rmdir would not work properly with substring paths on non-windows platforms.