docs: update changelog for v0.3.0 release

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: lorey

CHANGELOG.md

@@ -7,33 +7,28 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.0] - 2025-12-30
+
 ### Added
 
 - Support for Instagram URLs
 - Support for YouTube URLs
 - Support for Facebook profile.php URLs (profile ID-based)
-- CLI with `check` and `extract` commands using typer
+- CLI with `check` and `extract` commands
 - Type hints throughout the codebase
-- GitHub Actions CI/CD with trusted publishing
 - Support for Python 3.9-3.13
 
 ### Changed
 
-- Migrated from setup.py to pyproject.toml with hatch-vcs
-- Replaced flake8 with ruff for linting and formatting
-- Replaced Sphinx with MkDocs for documentation
-- Minimum Python version is now 3.9
+- Modernized packaging and CI/CD (pyproject.toml, GitHub Actions, MkDocs)
 
 ### Fixed
 
-- Regex patterns now use proper anchors (`^`/`$`) for exact matching
-- Character classes use `[A-Za-z]` instead of `[A-z]` (avoids matching `[\]^_``)
+- Regex patterns now use proper anchors for exact matching
 
 ### Removed
 
 - Dropped support for Python 3.4-3.8
-- Removed Travis CI (replaced with GitHub Actions)
-- Removed tox (using uv + GitHub Actions matrix)
 
 ## [0.2.0] - 2018-05-31
 
@@ -49,6 +44,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - First release on PyPI
 - Support for Facebook, Twitter, LinkedIn, GitHub detection
 
-[Unreleased]: https://github.com/lorey/socials/compare/v0.2.0...HEAD
-[0.2.0]: https://github.com/lorey/socials/compare/0.1.0...v0.2.0
-[0.1.0]: https://github.com/lorey/socials/releases/tag/0.1.0
+[Unreleased]: https://github.com/lorey/socials/compare/v0.3.0...HEAD
+[0.3.0]: https://github.com/lorey/socials/compare/v0.2.0...v0.3.0
+[0.2.0]: https://github.com/lorey/socials/compare/v0.1.0...v0.2.0
+[0.1.0]: https://github.com/lorey/socials/releases/tag/v0.1.0