12 Oct 2019
Features:
- Add `--ask` option to `pip-sync`
([913](https://github.com/jazzband/pip-tools/pull/913)). Thanks georgek
Bug Fixes:
- Add compatibility with `pip>=19.3`
([864](https://github.com/jazzband/pip-tools/pull/864),
[904](https://github.com/jazzband/pip-tools/pull/904),
[910](https://github.com/jazzband/pip-tools/pull/910),
[912](https://github.com/jazzband/pip-tools/pull/912) and
[915](https://github.com/jazzband/pip-tools/pull/915)). Thanks atugushev
- Ensure `pip-compile --no-header <blank requirements.in>` creates/overwrites
`requirements.txt` ([909](https://github.com/jazzband/pip-tools/pull/909)). Thanks
AndydeCleyre
- Fix `pip-compile --upgrade-package` removes «via» annotation
([931](https://github.com/jazzband/pip-tools/pull/931)). Thanks hramezani
Improved Documentation:
- Add info to `README` about layered requirements files and `-c` flag
([905](https://github.com/jazzband/pip-tools/pull/905)). Thanks jamescooke