Sourced from frozenlist's releases.

1.7.0

Features

• Added deepcopy support to FrozenList -- by :user:bdraco.

  Related issues and pull requests on GitHub: #659.

Packaging updates and notes for downstreams

• Fixed an issue where frozenlist binary wheels would be built with debugging symbols and line tracing enabled, which significantly impacted performance. Line tracing is now disabled by default and can only be enabled explicitly -- by :user:bdraco.

  This change ensures that production builds are optimized for performance. Developers who need line tracing for debugging purposes can still enable it by:

  1. Setting the FROZENLIST_CYTHON_TRACING environment variable
  2. Using the --config-setting=with-cython-tracing=true option with pip

  Related issues and pull requests on GitHub: #660.

• Enabled PIP_CONSTRAINT environment variable in the build configuration to ensure the pinned Cython version from requirements/cython.txt is used during wheel builds.

  Related issues and pull requests on GitHub: #661.

---

Sourced from frozenlist's changelog.

v1.7.0

(2025-06-09)

Features

• Added deepcopy support to FrozenList -- by :user:bdraco.

  Related issues and pull requests on GitHub: :issue:659.

Packaging updates and notes for downstreams

• Fixed an issue where frozenlist binary wheels would be built with debugging symbols and line tracing enabled, which significantly impacted performance. Line tracing is now disabled by default and can only be enabled explicitly -- by :user:bdraco.

  This change ensures that production builds are optimized for performance. Developers who need line tracing for debugging purposes can still enable it by:

  1. Setting the FROZENLIST_CYTHON_TRACING environment variable
  2. Using the --config-setting=with-cython-tracing=true option with pip

  Related issues and pull requests on GitHub: :issue:660.

• Enabled PIP_CONSTRAINT environment variable in the build configuration to ensure the pinned Cython version from requirements/cython.txt is used during wheel builds.

  Related issues and pull requests on GitHub: :issue:661.

---

• 63cbd49 Release 1.7.0 (#663)
• 6104de5 Implement deepcopy support (#662)
• a19b9da Only enable line tracing when building with Cython tracing (#660)
• 8c9d264 Enable PIP_CONSTRAINT to pin Cython version for builds (#661)
• See full diff in compare view

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