- The `init` command will now use existing `pyproject.toml` if possible ([#2448](https://github.com/python-poetry/poetry/pull/2448)).
- Error messages when metadata information retrieval fails have been improved ([#2997](https://github.com/python-poetry/poetry/pull/2997)).
### Fixed
- Fixed parsing of version constraint for `rc` prereleases ([#2978](https://github.com/python-poetry/poetry/pull/2978)).
- Fixed how some metadata information are extracted from `setup.cfg` files ([#2957](https://github.com/python-poetry/poetry/pull/2957)).
- Fixed return codes returned by the executor ([#2981](https://github.com/python-poetry/poetry/pull/2981)).
- Fixed whitespaces not being accepted for the list of extras when adding packages ([#2985](https://github.com/python-poetry/poetry/pull/2985)).
- Fixed repositories specified in the `pyproject.toml` file not being taken into account for authentication when downloading packages ([#2990](https://github.com/python-poetry/poetry/pull/2990)).
- Fixed permission errors when installing the root project if the `site-packages` directory is not writeable ([#3002](https://github.com/python-poetry/poetry/pull/3002)).
- Fixed environment marker propagation when exporting to the `requirements.txt` format ([#3002](https://github.com/python-poetry/poetry/pull/3002)).
- Fixed errors when paths in run command contained spaces ([#3015](https://github.com/python-poetry/poetry/pull/3015)).