What's Changed

• Add AI-disclosure and quality requirements to the contribution guidelines by @Byron in #2143
• docs(cmd): clarify Git.execute() string vs list command argument by @mvanhorn in #2144
• Rewrite Git.execute() command parameter docstring per #2146 by @EliahKagan in #2147
• Document init script behavior with multiple master remotes by @EliahKagan in #2148
• Bump git/ext/gitdb from 335c0f6 to 0a019a2 by @dependabot[bot] in #2149
• Support relative worktree paths (git 2.48+ worktree.useRelativePaths) by @elovelan in #2151
• Defer xfail condition evaluation with xfail_if_raises context manager by @elovelan in #2153
• Run more submodule tests on Cygwin (fix flaky xfails) by @EliahKagan in #2154
• Cut xtrace noise from POSIX-ownership diagnostic steps by @EliahKagan in #2156
• Support index diffs against the empty tree by @puneetdixit200 in #2155
• refactor: seperate out Progress type by @LoeschMaximilian in #2157
• Bump https://github.com/astral-sh/ruff-pre-commit from v0.15.12 to 0.15.15 in the pre-commit group by @dependabot[bot] in #2160
• Bump actions/checkout from 6 to 7 by @dependabot[bot] in #2164
• Bump git/ext/gitdb from 0a019a2 to 4950ea9 by @dependabot[bot] in #2165
• Bump https://github.com/astral-sh/ruff-pre-commit from v0.15.15 to 0.15.20 in the pre-commit group by @dependabot[bot] in #2166
• Add Commit.is_shallow property; document stats() limitation at shallow boundary by @harshitayadavv in #2167
• Allow relative config paths with includes by @Byron in #2169
• Reject abbreviated forms of unsafe git options by @Byron in #2168
• guard unsafe git command options by @Byron in #2163

New Contributors

• @elovelan made their first contribution in #2151
• @puneetdixit200 made their first contribution in #2155
• @LoeschMaximilian made their first contribution in #2157
• @harshitayadavv made their first contribution in #2167

Full Changelog: 3.1.50...3.1.51