Updated CHANGELOG.md

Author: aeon-automation

CHANGELOG.md

@@ -1,3 +1,9 @@
+## [Unreleased] - 2025-12-02
+
+### Changed
+- [653fd3](https://github.com/coduo/php-to-string/commit/653fd3b35a87b1c8b062cc5323eb9136841c7047) - **Upgrade cache action from v2 to v4** - [@norberttech](https://github.com/norberttech)
+- [#18](https://github.com/coduo/php-to-string/pull/18) - **extended and adjusted CI to run on relevant PHP versions** - [@smoench](https://github.com/smoench)
+
 ## [3.2.1] - 2023-03-28
 
 ### Changed
@@ -95,4 +101,14 @@
 ### Fixed
 - [7e29aa](https://github.com/coduo/php-to-string/commit/7e29aa926156d7952ea070af19066eac830192a2) - **travis configuration** - [@norberttech](https://github.com/norberttech)
 
+## Contributors
+
+- @jakzal
+- @norberttech
+- @norzechowicz
+- @peter279k
+- @sdaoudi
+- @smoench
+- @teklakct
+
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