Add usable-expressions refactor to changelog
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05dbb5e..7df783a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## Unpublished
 
+- Refactored how non-angular expressions (`new`, `+=`, `..`, etc.) are detected.
 - Refactored how `exports` are handled in a fairly major way.
 - Typecheck the results and input of pipe expressions and the existence of a
   matching pipe. Optional arguments are not yet typechecked.