diff --git a/README.md b/README.md
index fd86b4f..1f73c33 100644
--- a/README.md
+++ b/README.md
@@ -118,11 +118,20 @@ All code within the PHPCompatibility organisation is released under the GNU Less
 
 ## Changelog
 
+### 1.2.1 - 2022-10-23
+
+* `PHPCompatibilitySymfonyPolyfillPHP80` ruleset: allow for polyfilled `PhpToken` class, which was added in `polyfill-php80` version `1.25.0`.
+* README: Updated the installation instructions for [compatibility with Composer >= 2.2][composer22announce].
+* Composer: The package will now identify itself as a static analysis tool. Thanks [@GaryJones]!
+* Other housekeeping and minor documentation updates.
+
+[composer22announce]: https://blog.packagist.com/composer-2-2/#more-secure-plugin-execution
+
 ### 1.2.0 - 2021-02-16
 
 * Added new `PHPCompatibilitySymfonyPolyfillPHP80` ruleset.
 * The recommended version of the [Composer PHPCS plugin] is now `^0.7.0`, which offers compatibility with Composer 2.0.
-* The ruleset is now also tested against PHP 7.4 and 8.0.
+* The rulesets are now also tested against PHP 7.4 and 8.0.
     Note: full PHP 7.4 support is only available in combination with PHP_CodeSniffer >= 3.5.6.
     Note: runtime PHP 8.0 support is only available in combination with PHP_CodeSniffer >= 3.5.7, full support is expected in PHP_CodeSniffer 3.6.0.
 
@@ -157,4 +166,6 @@ All code within the PHPCompatibility organisation is released under the GNU Less
 
 Initial release of PHPCompatibilitySymfony containing rulesets covering the `polyfill-php*` libraries.
 
-[Composer PHPCS plugin]: https://github.com/Dealerdirect/phpcodesniffer-composer-installer/
+[Composer PHPCS plugin]: https://github.com/PHPCSStandards/composer-installer/
+
+[@GaryJones]: https://github.com/GaryJones