Prepare release 2.5.0

CHANGELOG.md

@@ -5,12 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [2.5.0] - 2024-04-16
 
-### Changed
+### Added
 
 - Add support for parsing variables containing digits (thanks [alexander-zubkov](https://github.com/alexander-zubkov))
+
+### Changed
+
 - Drop support for Dart SDK versions below 3.0.0
+- Refactor unit test suites and improve test coverage
 - Switch from pedantic to the [official Dart lint rules](https://pub.dev/packages/lints)
 
 ## [2.4.0] - 2023-04-05
@@ -192,7 +196,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial release of standalone version
 
-[unreleased]: https://github.com/fkleon/math-expressions/compare/2.3.0...HEAD
+[unreleased]: https://github.com/fkleon/math-expressions/compare/2.5.0...HEAD
+[2.5.0]: https://github.com/fkleon/math-expressions/compare/2.4.0...2.5.0
 [2.4.0]: https://github.com/fkleon/math-expressions/compare/2.3.1...2.4.0
 [2.3.1]: https://github.com/fkleon/math-expressions/compare/2.3.0...2.3.1
 [2.3.0]: https://github.com/fkleon/math-expressions/compare/2.2.0...2.3.0