Update CHANGELOG.md

CHANGELOG.md

@@ -2,17 +2,33 @@
 
 All notable changes to this project will be documented in this file.
 
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+## 2025-08-23
 
-## [Unreleased]
+### Added
+
+- Add `paratest` to all PHP shells.
+
+## 2025-08-22
+
+### Added
+
+- Add `sculpin` dev shell.
+- Add `pest` and `phpunit` to all PHP shells.
+- Add `phpstan` and `psalm` to all PHP shells.
+
+## 2025-08-15
+
+### Added
+
+- Add `composer2nix` to all PHP dev shells.
+
+## 2025-07-30
 
 ### Added
 
 - Add `php84` dev shell.
 - Add `go` dev shell.
-- Add `composer2nix` to all PHP dev shells.
 
 ### Changed
 
-- Refactor to use [devshell](https://flake.parts/options/devshell.html).
-- Show the Composer version with `composer -V` in the PHP shell hook.
+- Show the composer version in the PHP shell hook.