Merge pull request docker#2637 from docker/4.3.0-release

4.3.0 release

Merge pull request docker#2608 from ulyssessouza/4.2.2-release

Bump 4.2.2 release

Merge pull request docker#2580 from ulyssessouza/4.2.1-release

Bump 4.2.1

Merge pull request docker#2506 from ulyssessouza/4.2.0-release

4.2.0 release

Merge pull request docker#2443 from docker/4.1.0-release

4.1.0 release

Fix versions.py to include release stage

Signed-off-by: Joffrey F <[email protected]>

Merge pull request docker#2365 from docker/4.0.2-release

4.0.2 release

Merge pull request docker#2348 from docker/4.0.1-release

4.0.1 release

Merge pull request docker#2331 from docker/4.0.0-release

4.0.0 release

Add readthedocs config

Signed-off-by: Joffrey F <[email protected]>