Add supply chain security cooldowns for Dependabot and uv#4659
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Add supply chain security cooldowns for Dependabot and uv#4659
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Adds a 7-day cooldown to Dependabot's GitHub Actions updates so that recently-published (potentially compromised) action versions are ignored until they've been available long enough to be vetted. Security updates bypass the cooldown automatically. Adds a 3-day exclude-newer window to uv so that Python package versions published in the last 3 days are skipped during dependency resolution. This blocks the most common supply chain attack pattern where a malicious version is published and pulled by automated tooling before it gets yanked. Related: #4658 (permissions audit follow-up)
strickvl
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April 1, 2026 13:14
Resolve conflict in dependabot.yml: keep both the update-types filter from develop and the cooldown settings from this branch.
The github-actions ecosystem doesn't support semver-based cooldown (semver-major-days, semver-minor-days, semver-patch-days). Keep only default-days which is supported across all ecosystems.
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LLM Finetuning template updates in |
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Summary
exclude-newerwindow to uv viapyproject.toml, so Python package versions published in the last 3 days are skipped during dependency resolution. This blocks the most common supply chain attack pattern. Developers can override with--exclude-newer "0 days"when needed.Context
Of the 10 supply chain attacks William Woodruff examined, 8 had windows of opportunity under a week. Even a short cooldown dramatically reduces exposure.
Related
persist-credentialsusageTest plan
uv pip install -e ".[dev]"should succeed (all current deps are older than 3 days)uv add some-pkg --exclude-newer "0 days"should bypass the cooldown