chore: Releases 2.1.0

Bumped to 2.1.0 (not 2.0.1) since raising the
minimum PHP version to 8.0 in #25 is a breaking
change. Closes #18.

Author: thecodedrift

CHANGELOG.md

@@ -1,10 +1,15 @@
 # Changelog
 
-# next (planned @ 2.0.1)
+# 2.1.0 (Apr 13, 2026)
 - Adopts PSR-12 syntax everywhere (:heart: [jrzepa](https://github.com/jrzepa) [#12](https://github.com/thecodedrift/hotp-php/commit/7578eb618f2bca4f6a7121aaa75ee2b4c6fe6a94))
 - Expands version range for PHPUnit to ensure tests run against PHP 7.2 [#16](https://github.com/jakobo/hotp-php/pull/16)
 - Bump various dev dependancies [f88730](https://github.com/thecodedrift/hotp-php/commit/f88730af7a14f7e3c513616f6fb8acf3f27d30b2)
 - Test on newer PHP versions [#15](https://github.com/thecodedrift/hotp-php/pull/15) [86c624](https://github.com/thecodedrift/hotp-php/commit/86c624bf82272870549bef7b6bea199f633fceb0) [584992](https://github.com/thecodedrift/hotp-php/commit/58499240cf0a3a7725165d503284b0e311a441fa) [38775b](https://github.com/thecodedrift/hotp-php/commit/38775bde6167f43dfdb03cfac6d7d3216ad9599c)
+- Enables easy local development via a docker container [#6403696](https://github.com/thecodedrift/hotp-php/commit/6403696)
+- Minor code cleanup and removal of redundant operations [#25](https://github.com/thecodedrift/hotp-php/pull/25)
+
+## Breaking Changes
+- **Bump minimum version** - The minimum supported PHP version was raised from 7.2 to 8.0 [#25](https://github.com/thecodedrift/hotp-php/pull/25). We encourage you to update your PHP version to stay on top of potential security vulnerabilities and receive the latest performance and bug fixes.
 
 # 2.0.0 (Dec 20, 2020)
 - Code coverage reporting added (:heart: [reedy](https://github.com/reedy))