76c5774f25
Bug: None Change-Id: I4a926b2326c10759ac01b92c27f99f9d9ddc342e Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2369333 Reviewed-by: Alex Mineer <amineer@chromium.org> Commit-Queue: Solomon Kinard <solomonkinard@chromium.org> Cr-Commit-Position: refs/heads/master@{#802027}
23 lines
1.3 KiB
Markdown
23 lines
1.3 KiB
Markdown
# Guidelines for Considering Branch Date in Project Planning
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* Avoid changes to persisted data (e.g. data serialization, database schemas,
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etc) just before branch due to the risk of reverts. If you modify data that
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will be synced, this change should be forward compatible for up to four
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milestones (as stable and canary are at times four milestones apart and it's
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reasonable to assume that somebody runs stable on chromeos and canary on
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mac, both syncing to the same account).
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* Two weeks prior to the branch point, avoid committing big and risky changes
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or enabling non-trivial features.
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* Pay more attention to complexity and structure of CLs around branch points,
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in case fixes need to be merged back after branch is created. Break up a CL
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into smaller pieces to facilitate potential merges.
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* As the branch point gets closer, consider if there is data to gather (like
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adding use counters, or other histograms that we want) and prioritize that
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work. Metrics changes on branch don't meet the bar.
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* Prioritize stability and "bake time", as well as other ways to reduce the
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release risk in your timeline discussions.
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* Consider API adoption timelines: code may not be exercised until developers
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adopt API, so feature freeze and branch could have minimal impact on
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stability.
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