3.0.3

This is a fix release for the 3.0.x feature branch.

PyPI: https://pypi.org/project/Flask/3.0.3/
Changes: https://flask.palletsprojects.com/en/3.0.x/changes/#version-3-0-3
Milestone: https://github.com/pallets/flask/milestone/35?closed=1

• The default hashlib.sha1 may not be available in FIPS builds. Don't access it at import time so the developer has time to change the default. #5448
• Don't initialize the cli attribute in the sansio scaffold, but rather in the Flask concrete class. #5270

3.0.2

This is a fix release for the 3.0.x feature release branch. It fixes bugs but does not otherwise change behavior and should not result in breaking changes.

• Changes: https://flask.palletsprojects.com/en/3.0.x/changes/#version-3.0.2
• Milestone: https://github.com/pallets/flask/milestone/34?closed=1
• PyPI: https://pypi.org/project/Flask/3.0.2/

3.0.1

This is a fix release for the 3.0.x feature release branch.

Fixes an issue where using other JSON providers, such as flask-orjson, previously caused loaded session data to have an incorrect format in some cases.

• Changes: https://flask.palletsprojects.com/en/3.0.x/changes/#version-3-0-1
• Milestone: https://github.com/pallets/flask/milestone/32?closed=1
• PyPI: https://pypi.org/project/Flask/3.0.1/

3.0.0

This is a feature release, which includes new features, removes previously deprecated code, and adds new deprecations. The 3.0.x branch is now the supported fix branch, the 2.3.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. Test with warnings treated as errors to be able to adapt to deprecation warnings early.

• Changes: https://flask.palletsprojects.com/en/3.0.x/changes/#version-3-0-0
• Milestone: https://github.com/pallets/flask/milestone/20?closed=1

2.3.3

This is a fix release for the 2.3.x feature branch.

• Changes: https://flask.palletsprojects.com/en/2.3.x/changes/#version-2-3-3
• Milestone: https://github.com/pallets/flask/milestone/31?closed=1

2.2.5

This is a security fix release for the 2.2.x release branch. Note that 2.3.x is the currently supported release branch; please upgrade to the latest version if possible.

• Security advisory: GHSA-m2qf-hxjv-5gpq, CVE-2023-30861
• Changes: https://flask.palletsprojects.com/en/2.2.x/changes/#version-2-2-5
• Milestone: https://github.com/pallets/flask/milestone/30?closed=1

2.3.2

This is a security fix release for the 2.3.x release branch.

• Security advisory: GHSA-m2qf-hxjv-5gpq, CVE-2023-30861
• Changes: https://flask.palletsprojects.com/en/2.3.x/changes/#version-2-3-2
• Milestone: https://github.com/pallets/flask/milestone/29?closed=1

2.3.1

This is a fix release for the 2.3.x release branch.

• Changes: https://flask.palletsprojects.com/en/2.3.x/changes/#version-2-3-1
• Milestone: https://github.com/pallets/flask/milestone/28?closed=1

2.3.0

This is a feature release, which includes new features, removes previously deprecated code, and adds new deprecations. The 2.3.x branch is now the supported fix branch, the 2.2.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. Test with warnings treated as errors to be able to adapt to deprecation warnings early.

• Changes: https://flask.palletsprojects.com/en/2.3.x/changes/#version-2-3-0
• Milestone: https://github.com/pallets/flask/milestone/24?closed=1

2.2.4

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

• Changes: https://flask.palletsprojects.com/en/2.2.x/changes/#version-2-2-4
• Milestone: https://github.com/pallets/flask/milestone/27?closed=1