CHANGELOG.md in openid_connect-2.1.0 vs CHANGELOG.md in openid_connect-2.2.0

@@ -1,6 +1,12 @@
 ## [Unreleased]
 
+## [2.1.0] - 2022-10-10
+
+### Changed
+
+- mTLS access token by @nov in https://github.com/nov/openid_connect/pull/76
+
 ## [2.0.0] - 2022-10-09
 
 ### Added
 
 - start recording CHANGELOG
\ No newline at end of file