Bump sphinx-rtd-theme from 1.3.0 to 2.0.0

[dependabot]

Bumps sphinx-rtd-theme from 1.3.0 to 2.0.0.

Changelog

Sourced from sphinx-rtd-theme's changelog.

2.0.0

Added

• Support for Sphinx versions 6.x and 7.x
• Support for docutils <=0.20

Deprecations

• The HTML4 writer is now officially deprecated. An error will be thrown if your project configuration still uses the HTML4 writer.
• Support for Sphinx versions < 5.0 was removed.
• In addition, our supported dependencies will match the dependencies from our lowest supported Sphinx release, version 5.0: Python >= 3.6 and docutils > 0.14 and < 0.19

.. _release-1.3.0:

Commits

• 7c9b1b5 Release 2.0 final (#1544)
• c104410 Bump for next potential release, 2.0.0rc5 (#1539)
• 53ca116 Release 2.0.0rc4 (#1538)
• 4498e97 Fix AttributeError when one of css_files is a string (#1537)
• 84aea9b Increment for next potential release (#1536)
• febde39 Release 2.0.0rc3 (#1535)
• 32310a8 Fix #1522: fix 'str' object has no attribute 'attributes' (#1528)
• 8ce23ce Version bump for 2.0rc3 development (#1521)
• 46f5307 Release 2.0rc2 (#1520)
• 5838e6a Add support for docutils==0.20.x (#1517)
• Additional commits viewable in compare view

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Note

Low Risk
Low risk dependency/lockfile update confined to dev-time documentation tooling; main runtime code is unaffected, with the main risk being doc build compatibility changes from the theme bump.

Overview
Updates the docs toolchain by bumping sphinx-rtd-theme to 2.0.0 and widening the allowed version range in pyproject.toml.

Regenerates poetry.lock (Poetry generator version change), updating the resolved dependency set/markers (notably docutils/sphinx constraints for the theme) and adding the standard-imghdr lock entry for Python 3.13+.

^{Written by Cursor Bugbot for commit 079cfc2. This will update automatically on new commits. Configure here.}

[dependabot]

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[Copilot]

Pull request overview

Updates the documentation/dev dependency sphinx-rtd-theme to resolve to v2.0.0 (per lockfile), aligning the project’s dev docs toolchain with the newer Read the Docs Sphinx theme release.

Changes:

• Relax sphinx-rtd-theme constraint in pyproject.toml and re-lock dependencies.
• Update poetry.lock to pin sphinx-rtd-theme at 2.0.0 (and refresh lock metadata/markers).

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 1 comment.

File	Description
pyproject.toml	Updates the declared version constraint for sphinx-rtd-theme in dev dependencies.
poetry.lock	Pins sphinx-rtd-theme to 2.0.0 and updates lock metadata accordingly.

[Copilot]

The PR title/description says this bumps sphinx-rtd-theme to 2.0.0, but the updated constraint allows any 1.x version (and even 1.2). This can permit downgrades on future resolves and doesn’t accurately express the intended upgrade. Consider tightening the lower bound to >=2.0.0 (or using a caret constraint for 2.x) so the dependency spec matches the bump intent. Also note that ReadTheDocs installs from docs/requirements.txt, which is unpinned, so its docs build may still drift from the Poetry-resolved theme version unless that file is aligned.