Fixed #22891 -- Clarified that collecstatic --clear with delete all files in the storage location.
Added backwards incompatibility note for refs #22845; refs #23082.

Thanks Kyle Owens for the report.
Removed usage of deprecated switch_to_*() selenium methods.
Improved patching of sys.stdout in refs #23078.
Silenced OptionParser deprecation warning in a test.
Silenced a Python 2 ImportWarning in a migrations test.
Corrected headings in migration docs.
Silenced test warning for deprecated IPAddressField.
Fixed #23094 -- Removed redundant argument in select_related() example.

Thanks thegeekofalltrades at gmail.com for the report.
Fixed #21707 -- Added helpful error message when using {{ block.super }} in base template.

Thanks mitar for the suggestion.
Fixed #23014 -- Infinite migration regression with unique/index_together.
Fixed #22849 -- Added Session.__str__()
Forward ported release notes for refs #23089.
Fixed #23088 -- Used `six` `range` type in `Paginator.page_range`.
Improved docs for GEOSGeometry.simplify()
Fixed #22827 -- clarified what each cache middleware does.

Thanks Keryn Knight for the report.
Merge pull request #2938 from dekkers/ticket_23071

Fixed #23071 -- Use last migration's name in dependency to other app
Mark initial_data as deprecated separately from syncdb. Refs #23077.
Fixed #23093: soft application detection for swapped models
Restore support for reading __latest__ for compatability