Merge pull request readthedocs#8924 from readthedocs/release/7.2.1

Release 7.2.1

Merge pull request readthedocs#8898 from readthedocs/release/7.2.0

Release 7.2.0

Release 7.1.2 (readthedocs#8873)

Release 7.1.1 (readthedocs#8872)

Merge pull request readthedocs#8838 from readthedocs/release/7.1.0

Release 7.1.0

Merge pull request readthedocs#8818 from readthedocs/release/7.0.0

Release 7.0.0

Release 6.3.3 (readthedocs#8806)

Merge pull request readthedocs#8794 from readthedocs/release/6.3.2

Release 6.3.2

Merge pull request readthedocs#8763 from readthedocs/release/6.3.1

Release 6.3.1

Release 6.3.0 (readthedocs#8730)