makeDefaultSet(data, len(data.VersionSets)-1, timestamp)
} else if addNew := req.GetAddNewCompatibleBuildId(); addNew != nil {
compatSetIdx, _ := worker_versioning.FindBuildId(data, compatVer)
if compatSetIdx == -1 {
return nil, serviceerror.NewNotFoundf(
"targeted compatible_version %v not found", compatVer)