Update CHANGELOG for v1.0.0 release with new features and fixes

Author: Thavarshan

CHANGELOG.md

@@ -1,7 +1,20 @@
 # Release Notes
 
-## [Unreleased](https://github.com/Thavarshan/phpvm/compare/v0.0.1...HEAD)
+## [v1.0.0](https://github.com/Thavarshan/phpvm/compare/v0.0.1...v1.0.0) - 2025-02-04
+
+### Added
+- Auto-switching PHP versions based on `.phpvmrc`.
+- Improved support for macOS Homebrew installations.
+- Enhanced installation script for easy setup using `curl` or `wget`.
+- More robust error handling and output formatting.
+- Extended compatibility with `bash` and `zsh` shells.
+
+### Fixed
+- Resolved issues with Homebrew PHP detection on macOS.
+- Prevented terminal crashes due to incorrect sourcing in shell startup scripts.
+- Improved handling of missing PHP versions.
 
 ## [v0.0.1](https://github.com/Thavarshan/phpvm/compare/v0.0.0...v0.0.1) - 2024-10-05
 
 Initial release for public testing and feedback.
+