CHANGELOG.md in alt_memery-2.0.0 vs CHANGELOG.md in alt_memery-2.1.0

@@ -1,8 +1,16 @@
 # Changelog
 
 ## master (unreleased)
 
+## 2.1.0 (2021-02-10)
+
+*   Support Ruby 3.
+*   Fix error of `#clear_memery_cache!` with specific methods and without existing cache.
+*   Improve specs.
+*   Update development dependencies.
+*   Update documentation.
+
 ## 2.0.0 (2020-07-09)
 
 *   Rename gem.
 *   Rewrite implementation from `prepend Module` to `UnboundMethod`.
     See discussion here: <https://github.com/tycooon/memery/pull/1>.