Release 7.21.0

Author: jeromegamez

CHANGELOG.md

@@ -7,6 +7,8 @@ Please read about the future of the Firebase Admin PHP SDK on the
 
 ## [Unreleased]
 
+## [7.21.0] - 2025-07-23
+
 ### Changed
 
 * This release introduces [Valinor](https://valinor.cuyz.io/) for type-safe object mapping. The first application is
@@ -372,7 +374,8 @@ See **[UPGRADE-7.0](UPGRADE-7.0.md) for more details on the changes between 6.x
 
 https://github.com/kreait/firebase-php/blob/6.9.6/CHANGELOG.md
 
-[Unreleased]: https://github.com/kreait/firebase-php/compare/7.20.0...7.x
+[Unreleased]: https://github.com/kreait/firebase-php/compare/7.21.0...7.x
+[7.21.0]: https://github.com/kreait/firebase-php/compare/7.20.0...7.21.0
 [7.20.0]: https://github.com/kreait/firebase-php/compare/7.19.0...7.20.0
 [7.19.0]: https://github.com/kreait/firebase-php/compare/7.18.0...7.19.0
 [7.18.0]: https://github.com/kreait/firebase-php/compare/7.17.0...7.18.0