Merge branch 'release/0.5.0'

Release version 0.4.0 (#9)

Release version 0.3.0 (#7)

Release version 0.2.0

- Bump version to 0.2.0 in `Cargo.toml` and `Cargo.lock`.
- Update `SECURITY.md` support matrix for version 0.2.0.
- Add release notes for 0.2.0 in `CHANGELOG.md`.

Update README.md to reflect new API method names and deprecations

Initial commit