remove "unreleased" from 1.15 changelog entry

wesleywright · wesleywright · commit 686b591a69db · 2025-02-05T00:06:50.000Z
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ...
 
-## Mypy 1.15 (Unreleased)
+## Mypy 1.15
 
 We’ve just uploaded mypy 1.15 to the Python Package Index ([PyPI](https://pypi.org/project/mypy/)).
 Mypy is a static type checker for Python. This release includes new features, performance
