Sourced from werkzeug's releases.

3.1.6

This is the Werkzeug 3.1.6 security fix release, which fixes a security issue but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.6/ Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-6

• safe_join on Windows does not allow special devices names in multi-segment paths. GHSA-29vq-49wr-vm6x

3.1.5

This is the Werkzeug 3.1.5 security fix release, which fixes security issues and bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.5/ Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-5 Milestone: https://github.com/pallets/werkzeug/milestone/43?closed=1

• safe_join on Windows does not allow more special device names, regardless of extension or surrounding spaces. GHSA-87hc-h4r5-73f7
• The multipart form parser handles a \r\n sequence at a chunk boundary. This fixes the previous attempt, which caused incorrect content lengths. #3065 #3077
• Fix AttributeError when initializing DebuggedApplication with pin_security=False. #3075

3.1.4

This is the Werkzeug 3.1.4 fix release, which fixes bugs but does not otherwise change behavior and should not result in breaking changes compared to the latest feature release.

PyPI: https://pypi.org/project/Werkzeug/3.1.4/ Changes: https://werkzeug.palletsprojects.com/page/changes/#version-3-1-4 Milestone: https://github.com/pallets/werkzeug/milestone/42?closed=1

• safe_join on Windows does not allow special device names. This prevents reading from these when using send_from_directory. secure_filename already prevented writing to these. ghsa-hgf8-39gv-g3f2
• The debugger pin fails after 10 attempts instead of 11. #3020
• The multipart form parser handles a \r\n sequence at a chunk boundary. #3065
• Improve CPU usage during Watchdog reloader. #3054
• Request.json annotation is more accurate. #3067
• Traceback rendering handles when the line number is beyond the available source lines. #3044
• HTTPException.get_response annotation and doc better conveys the distinction between WSGI and sans-IO responses. #3056

3.1.3

This is the Werkzeug 3.1.3 fix release, which fixes bugs but does not otherwise change behavior and should not result in breaking changes vs 3.1.0.

PyPI: https://pypi.org/project/Werkzeug/3.1.3/ Changes: https://werkzeug.palletsprojects.com/en/stable/changes/#version-3-1-3 Milestone: https://github.com/pallets/werkzeug/milestone/41?closed=1

• Initial data passed to MultiDict and similar interfaces only accepts list, tuple, or set when passing multiple values. It had been changed to accept any Collection, but this matched types that should be treated as single values, such as bytes. #2994
• When the Host header is not set and Request.host falls back to the WSGI SERVER_NAME value, if that value is an IPv6 address it is wrapped in [] to match the Host header. #2993

3.1.2

This is the Werkzeug 3.1.2 fix release, which fixes bugs but does not otherwise change behavior and should not result in breaking changes vs 3.1.0.

PyPI: https://pypi.org/project/Werkzeug/3.1.2/ Changes: https://werkzeug.palletsprojects.com/en/stable/changes/#version-3-1-2

... (truncated)

Sourced from werkzeug's changelog.

Version 3.1.6

Released 2026-02-19

• safe_join on Windows does not allow special devices names in multi-segment paths. :ghsa:29vq-49wr-vm6x

Version 3.1.5

Released 2026-01-08

• safe_join on Windows does not allow more special device names, regardless of extension or surrounding spaces. :ghsa:87hc-h4r5-73f7
• The multipart form parser handles a \r\n sequence at a chunk boundary. This fixes the previous attempt, which caused incorrect content lengths. :issue:3065 :issue:3077
• Fix AttributeError when initializing DebuggedApplication with pin_security=False. :issue:3075

Version 3.1.4

Released 2025-11-28

• safe_join on Windows does not allow special device names. This prevents reading from these when using send_from_directory. secure_filename already prevented writing to these. :ghsa:hgf8-39gv-g3f2
• The debugger pin fails after 10 attempts instead of 11. :pr:3020
• The multipart form parser handles a \r\n sequence at a chunk boundary. :issue:3065
• Improve CPU usage during Watchdog reloader. :issue:3054
• Request.json annotation is more accurate. :issue:3067
• Traceback rendering handles when the line number is beyond the available source lines. :issue:3044
• HTTPException.get_response annotation and doc better conveys the distinction between WSGI and sans-IO responses. :issue:3056

Version 3.1.3

Released 2024-11-08

• Initial data passed to MultiDict and similar interfaces only accepts list, tuple, or set when passing multiple values. It had been changed to accept any Collection, but this matched types that should be

... (truncated)

• 04da1b5 release version 3.1.6
• f407712 Merge commit from fork
• f54fe98 safe_join prevents Windows special device names in multi-segment paths
• d005985 start version 3.1.6
• 8565c2c document rule priority (#3102)
• 3febc7e document rule priority
• 2525b82 remove state machine docs
• 4abfbd5 rewrite build docstring (#3097)
• 161c18b rewrite build docstring
• 86e11c2 release version 3.1.5 (#3085)
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