Activate schedule workflow changes in #5179, #5277, #5344, and #5381 (#…

…5698)

## What changed?
Activate schedule workflow logic changes. Some of this code is not in
1.23.0, but we can patch those PRs into 1.23.1 to support downgrades to
the 1.23 series.

## Why?
Fix bugs, support new features, make more efficient.

## How did you test it?
existing tests (on those PRs)

## Potential risks
schedule workflow determinism errors

service/worker/scheduler/workflow.go

@@ -213,8 +213,8 @@ var (
 		BackfillsPerIteration:             10,
 		AllowZeroSleep:                    true,
 		ReuseTimer:                        true,
-		NextTimeCacheV2Size:               14,                   // see note below
-		Version:                           DontTrackOverlapping, // TODO: upgrade to UpdateFromPrevious
+		NextTimeCacheV2Size:               14, // see note below
+		Version:                           UpdateFromPrevious,
 	}
 
 	// Note on NextTimeCacheV2Size: This value must be > FutureActionCountForList. Each
@@ -539,22 +539,6 @@ func (s *scheduler) fillNextTimeCacheV2(start time.Time) {
 	// Run this logic in a SideEffect so that we can fix bugs there without breaking
 	// existing schedule workflows.
 	val := workflow.SideEffect(s.ctx, func(ctx workflow.Context) interface{} {
-		// Continue returning json temporarily for forwards-compatibility.
-		// TODO: remove this after releasing a version that understands proto.
-		if true {
-			cache := jsonNextTimeCacheV2{Version: s.tweakables.Version, Start: start}
-			for t := start; len(cache.Results) < s.tweakables.NextTimeCacheV2Size; {
-				next := s.cspec.getNextTime(s.jitterSeed(), t)
-				if next.Next.IsZero() {
-					cache.Completed = true
-					break
-				}
-				cache.Results = append(cache.Results, next)
-				t = next.Next
-			}
-			return cache
-		}
-
 		cache := &schedspb.NextTimeCache{
 			Version:      int64(s.tweakables.Version),
 			StartTime:    timestamppb.New(start),

service/worker/scheduler/workflow_test.go

@@ -1256,11 +1256,6 @@ func (s *workflowSuite) TestBackfill() {
 }
 
 func (s *workflowSuite) TestBackfillInclusiveStartEnd() {
-	// TODO: remove once default version is InclusiveBackfillStartTime
-	currentVersion := currentTweakablePolicies.Version
-	currentTweakablePolicies.Version = InclusiveBackfillStartTime
-	defer func() { currentTweakablePolicies.Version = currentVersion }()
-
 	s.runAcrossContinue(
 		[]workflowRun{
 			// if start and end time were not inclusive, this backfill run would not exist
@@ -1322,9 +1317,7 @@ func (s *workflowSuite) TestBackfillInclusiveStartEnd() {
 }
 
 func (s *workflowSuite) TestHugeBackfillAllowAll() {
-	// TODO: remove once default version is IncrementalBackfill
 	prevTweakables := currentTweakablePolicies
-	currentTweakablePolicies.Version = IncrementalBackfill
 	currentTweakablePolicies.MaxBufferSize = 30 // make smaller for testing
 	defer func() { currentTweakablePolicies = prevTweakables }()
 
@@ -1386,9 +1379,7 @@ func (s *workflowSuite) TestHugeBackfillAllowAll() {
 }
 
 func (s *workflowSuite) TestHugeBackfillBuffer() {
-	// TODO: remove once default version is IncrementalBackfill
 	prevTweakables := currentTweakablePolicies
-	currentTweakablePolicies.Version = IncrementalBackfill
 	currentTweakablePolicies.MaxBufferSize = 30 // make smaller for testing
 	defer func() { currentTweakablePolicies = prevTweakables }()
 
@@ -1673,11 +1664,6 @@ func (s *workflowSuite) TestUpdateNotRetroactive() {
 // Tests that an update between a nominal time and jittered time for a start, that doesn't
 // modify that start, will still start it.
 func (s *workflowSuite) TestUpdateBetweenNominalAndJitter() {
-	// TODO: remove once default version is UpdateFromPrevious
-	prevTweakables := currentTweakablePolicies
-	currentTweakablePolicies.Version = UpdateFromPrevious
-	defer func() { currentTweakablePolicies = prevTweakables }()
-
 	spec := &schedpb.ScheduleSpec{
 		Interval: []*schedpb.IntervalSpec{{
 			Interval: durationpb.New(1 * time.Hour),