Consider adding a changelog to track version history

[goransh-buh]

Feature Request

Summary

A CHANGELOG.md file would help users understand what changed between versions and make upgrade decisions easier.

Motivation

When upgrading dependencies, developers need to know:

• What bugs were fixed
• What new features were added
• Whether there are any breaking changes

Suggested Format

Follow the Keep a Changelog convention:

# Changelog

## [Unreleased]

## [1.2.0] - 2024-01-15
### Added
- New feature X
### Fixed  
- Bug with Y under Z conditions
### Changed
- Behaviour of Z is now more consistent

Additional Context

This is purely a documentation change with no code impact.