- Introduced `simple_postgres_upgrade.sh`, a script to streamline the PostgreSQL upgrade process within Docker containers, featuring backup, restore, and upgrade capabilities.
- Includes a detailed `README.md` with usage instructions, options, and examples.
- Provides a `CHANGELOG.md` to track changes and features of the script.
- Licensed under MIT as outlined in `LICENSE` file.
- Initial version set to `0.0.1`.