Werkzeug 1.0.0 Released

The Pallets team is pleased to release Werkzeug 1.0. Werkzeug is the low-level WSGI and HTTP toolkit that powers Flask. It's been almost 13 years since the first commit, and this milestone for the project brings many fixes and changes. Read the full changelog to understand what may affect your code when upgrading.

• Drop support for Python 3.4. This will be the last version to support Python 2.7 and 3.5.
• Remove most top-level attributes provided by the werkzeug module in favor of direct imports. If you haven't already, use version 0.16 first to see deprecation warnings while upgrading.
• Cookies support the samesite='None' option. Cookies are parsed as a MultiDict instead of overwriting repeated keys.
• The development server supports 2-way TLS, making it easier to develop applications that inspect client certificates.
• When building URLs with host matching, the current host is accounted for when deciding what rule to build.
• When defining and matching URL rules, consecutive slashes are merged by default to match the behavior of common HTTP servers.
• The Accept header preserves order for tags with equal quality and considers options on each value. The Accept-Language header can match the primary tag if the specific value is not present.
• Added CORS header attributes to Request and Response.
• A URL rule can be marked as a websocket, in which case it will only match for wss:// requests. This allows async web frameworks to use Werkzeug for routing.

Version 2.0 Coming Soon

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As outlined in Ending Python 2 Support, 1.0.x will be the last version to support Python 2.7 and 3.5. The next version will be 2.0 and will support Python 3.6 and newer.

Install or Upgrade

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Install from PyPI with pip:

pip install -U Werkzeug

Donate to Support Pallets

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The Pallets organization accepts donations as part of the non-profit Python Software Foundation (PSF). Donations through the PSF support our efforts to maintain the projects and grow the community.

Click here to donate. ❤

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