Sourced from flask's releases.

2.2.3

This is a fix release for the 2.2.x release branch.

• Changes: https://flask.palletsprojects.com/en/2.2.x/changes/#version-2-2-3
• Milestone: https://github.com/pallets/flask/milestone/26?closed=1

2.2.2

This is a fix release for the 2.2.0 feature release.

• Changes: https://flask.palletsprojects.com/en/2.2.x/changes/#version-2-2-2
• Milestone: https://github.com/pallets/flask/milestone/25?closed=1

2.2.1

This is a fix release for the 2.2.0 feature release.

• Changes: https://flask.palletsprojects.com/en/2.2.x/changes/#version-2-2-1
• Milestone: https://github.com/pallets/flask/milestone/23?closed=1

2.2.0

This is a feature release, which includes new features and removes previously deprecated code. The 2.2.x branch is now the supported bug fix branch, the 2.1.x branch will become a tag marking the end of support for that branch. We encourage everyone to upgrade, and to use a tool such as pip-tools to pin all dependencies and control upgrades.

• Changes: https://flask.palletsprojects.com/en/2.2.x/changes/#version-2-2-0
• Milestone: https://github.com/pallets/flask/milestone/19?closed=1

Sourced from flask's changelog.

Version 2.2.3

Released 2023-02-15

• Autoescape is enabled by default for .svg template files. :issue:4831
• Fix the type of template_folder to accept pathlib.Path. :issue:4892
• Add --debug option to the flask run command. :issue:4777

Version 2.2.2

Released 2022-08-08

• Update Werkzeug dependency to >= 2.2.2. This includes fixes related to the new faster router, header parsing, and the development server. :pr:4754
• Fix the default value for app.env to be "production". This attribute remains deprecated. :issue:4740

Version 2.2.1

Released 2022-08-03

• Setting or accessing json_encoder or json_decoder raises a deprecation warning. :issue:4732

Version 2.2.0

Released 2022-08-01

• Remove previously deprecated code. :pr:4667

  • Old names for some send_file parameters have been removed. download_name replaces attachment_filename, max_age replaces cache_timeout, and etag replaces add_etags. Additionally, path replaces filename in send_from_directory.
  • The RequestContext.g property returning AppContext.g is removed.

• Update Werkzeug dependency to >= 2.2.

• The app and request contexts are managed using Python context vars directly rather than Werkzeug's LocalStack. This should result in better performance and memory use. :pr:4682

... (truncated)

• 41d4f62 release version 2.2.3
• 24df8fc show 'run --debug' in docs
• b945f98 Merge pull request #4973 from pallets/docs-lifetime
• a6cd8f2 document the lifecycle of a flask application and request
• f425c11 Merge pull request #4972 from pallets/docs-push-reqctx
• ba2b309 fix test client arg for query string example
• 129568f Merge pull request #4971 from pallets/docs-blueprint-app-methods
• ab93222 point to app-scoped blueprint methods
• d552726 Merge pull request #4968 from pallets/docs-celery
• 3f19524 add celery example
• Additional commits viewable in compare view