IsWithdrawn returns whether the given version is known to be a withdrawn release.

LatestPatch returns the latest non-withdrawn patch release of the series passed.

LatestPredecessor returns the latest non-withdrawn predecessor of the version passed.

LatestPredecessorHistory returns the last consecutive `k` releases that precede the given version in the upgrade order (as dictated by cockroach_releases.yaml).

MajorReleasesBetween returns the number of major releases between any two versions passed.

RandomPredecessor is like LatestPredecessor, but instead of returning the latest patch version, it will return a random one.

RandomPredecessorHistory is like `LatestPredecessorHistory`, but instead of returning a list of the latest patch releases, it will return a random non-withdrawn patch release for each release series.

WithReleaseData overwrites the release mapping while the function passed runs.

Series contains information about a cockroachdb release series.