Prepare for release

Author: BenMorel

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file.
 
-## UNRELEASED (0.14.0)
+## [0.14.0](https://github.com/brick/math/releases/tag/0.14.0) - 2025-08-29
 
 ✨ **New features**
 
@@ -17,7 +17,7 @@ All notable changes to this project will be documented in this file.
 - Minimum PHP version is now 8.2
 - `BigNumber` classes are now `readonly`
 - `BigNumber` is now marked as sealed: it must not be extended outside of this package
-- exception classes are now `final`
+- Exception classes are now `final`
 
 ## [0.13.1](https://github.com/brick/math/releases/tag/0.13.1) - 2025-03-29