Add 2.1.0 to changelog

Author: mcaskill

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [2.1.0] — 2022-04-01
+
+* Fixed tests against Composer 1.0–2.3
+* Fixed tests against PHP 5.3.2–8.1
+* Fixed configuration of `.travis.yml`
+
 ## [2.0.0] — 2020-09-25
 
 * BC Break: Removed support for `autoload.exclude-from-files`
@@ -30,7 +36,8 @@
 
 * Initial release.
 
-[Unreleased]: https://github.com/mcaskill/composer-plugin-exclude-files/compare/v2.0.0...HEAD
+[Unreleased]: https://github.com/mcaskill/composer-plugin-exclude-files/compare/v2.1.0...HEAD
+[2.1.0]:      https://github.com/mcaskill/composer-plugin-exclude-files/compare/v2.0.0...v2.1.0
 [2.0.0]:      https://github.com/mcaskill/composer-plugin-exclude-files/compare/v1.3.0...v2.0.0
 [1.3.0]:      https://github.com/mcaskill/composer-plugin-exclude-files/compare/v1.2.0...v1.3.0
 [1.2.0]:      https://github.com/mcaskill/composer-plugin-exclude-files/compare/v1.1.0...v1.2.0