diff --git a/internal/tiltfile/live_update.go b/internal/tiltfile/live_update.go
index 3b954f2034..8c6aa84526 100644
--- a/internal/tiltfile/live_update.go
+++ b/internal/tiltfile/live_update.go
@@ -15,16 +15,6 @@ import (
 	"github.com/tilt-dev/tilt/pkg/model"
 )
 
-const fmtRestartContainerDeprecationWarning = "Found `restart_container()` LiveUpdate step in resource(s): [%s]. `restart_container()`  will soon be deprecated. For recommended ways to restart your process, see https://docs.tilt.dev/live_update_reference.html#restarting-your-process"
-
-func restartContainerDeprecationWarning(names []model.ManifestName) string {
-	strs := make([]string, len(names))
-	for i, n := range names {
-		strs[i] = n.String()
-	}
-	return fmt.Sprintf(fmtRestartContainerDeprecationWarning, strings.Join(strs, ", "))
-}
-
 // when adding a new type of `liveUpdateStep`, make sure that any tiltfile functions that create them also call
 // `s.recordLiveUpdateStep`
 type liveUpdateStep interface {
diff --git a/internal/tiltfile/live_update_test.go b/internal/tiltfile/live_update_test.go
index 51aad4310e..cc39c2724f 100644
--- a/internal/tiltfile/live_update_test.go
+++ b/internal/tiltfile/live_update_test.go
@@ -310,88 +310,6 @@ custom_build('gcr.io/foo', 'docker build -t $TAG foo', ['./foo'],
 	f.loadErrString("fall_back_on", f.JoinPath("bar"), f.JoinPath("foo"), "child", "any watched filepaths")
 }
 
-func TestLiveUpdateRestartContainerDeprecationWarnK8s(t *testing.T) {
-	f := newFixture(t)
-	defer f.TearDown()
-
-	f.setupFoo()
-
-	f.file("Tiltfile", `
-k8s_yaml('foo.yaml')
-docker_build('gcr.io/foo', './foo',
-  live_update=[
-    sync('foo/bar', '/baz'),
-	restart_container(),
-  ]
-)`)
-	f.loadAssertWarnings(restartContainerDeprecationWarning([]model.ManifestName{"foo"}))
-}
-
-func TestLiveUpdateRestartContainerDeprecationWarnK8sCustomBuild(t *testing.T) {
-	f := newFixture(t)
-	defer f.TearDown()
-
-	f.setupFoo()
-
-	f.file("Tiltfile", `
-k8s_yaml('foo.yaml')
-custom_build('gcr.io/foo', 'docker build -t $TAG foo', ['./foo'],
-  live_update=[
-    sync('foo/bar', '/baz'),
-	restart_container(),
-  ]
-)`)
-
-	f.loadAssertWarnings(restartContainerDeprecationWarning([]model.ManifestName{"foo"}))
-}
-
-func TestLiveUpdateRestartContainerDeprecationWarnMultiple(t *testing.T) {
-	f := newFixture(t)
-	defer f.TearDown()
-
-	f.setupExpand()
-
-	f.file("Tiltfile", `
-k8s_yaml('all.yaml')
-docker_build('gcr.io/a', './a',
-  live_update=[
-    sync('./a', '/'),
-	restart_container(),
-  ]
-)
-docker_build('gcr.io/b', './b')
-docker_build('gcr.io/c', './c',
-  live_update=[
-    sync('./c', '/'),
-	restart_container(),
-  ]
-)
-docker_build('gcr.io/d', './d',
-  live_update=[sync('./d', '/')]
-)`)
-
-	f.loadAssertWarnings(restartContainerDeprecationWarning([]model.ManifestName{"a", "c"}))
-}
-
-func TestLiveUpdateNoRestartContainerDeprecationWarnK8sDockerCompose(t *testing.T) {
-	f := newFixture(t)
-	defer f.TearDown()
-	f.setupFoo()
-	f.file("docker-compose.yml", `version: '3'
-services:
-  foo:
-    image: gcr.io/foo
-`)
-	f.file("Tiltfile", `
-docker_build('gcr.io/foo', 'foo')
-docker_compose('docker-compose.yml')
-`)
-
-	// Expect no deprecation warning b/c restart_container() is still allowed on Docker Compose resources
-	f.load()
-	f.assertNextManifest("foo", db(image("gcr.io/foo")))
-}
-
 type liveUpdateFixture struct {
 	*fixture
 
@@ -408,6 +326,7 @@ func (f *liveUpdateFixture) init() {
     fall_back_on(['foo/i', 'foo/j']),
 	sync('foo/b', '/c'),
 	run('f', ['g', 'h']),
+	restart_container(),
 ]`
 	codeToInsert := fmt.Sprintf(f.tiltfileCode, luSteps)
 	tiltfile := fmt.Sprintf(`
@@ -434,6 +353,7 @@ func newLiveUpdateFixture(t *testing.T) *liveUpdateFixture {
 			Command:  model.ToUnixCmd("f"),
 			Triggers: model.NewPathSet([]string{"g", "h"}, f.Path()),
 		},
+		model.LiveUpdateRestartContainerStep{},
 	)
 
 	f.expectedLU = model.LiveUpdate{
diff --git a/internal/tiltfile/tiltfile_state.go b/internal/tiltfile/tiltfile_state.go
index 0033c5f0fc..e9094d0f62 100644
--- a/internal/tiltfile/tiltfile_state.go
+++ b/internal/tiltfile/tiltfile_state.go
@@ -1106,7 +1106,6 @@ func (s *tiltfileState) translateK8s(resources []*k8sResource) ([]model.Manifest
 
 		result = append(result, m)
 	}
-	s.maybeWarnRestartContainerDeprecation(result)
 
 	return result, nil
 }
@@ -1206,38 +1205,10 @@ func (s *tiltfileState) validateLiveUpdate(iTarget model.ImageTarget, g model.Ta
 			return fmt.Errorf("fall_back_on paths '%s' is not a child of any watched filepaths (%v)",
 				path, watchedPaths)
 		}
-	}
-
-	return nil
-}
-
-func (s *tiltfileState) maybeWarnRestartContainerDeprecation(manifests []model.Manifest) {
-	var needsWarn []model.ManifestName
-	for _, m := range manifests {
-		if needsRestartContainerDeprecationWarning(m) {
-			needsWarn = append(needsWarn, m.Name)
-		}
-	}
 
-	if len(needsWarn) > 0 {
-		s.logger.Warnf("%s", restartContainerDeprecationWarning(needsWarn))
-	}
-}
-func needsRestartContainerDeprecationWarning(m model.Manifest) bool {
-	// 6/8/20: we're in the process of deprecating restart_container() in favor of the
-	// restart_process extension. If this is a k8s resource with a restart_container
-	// step, give a deprecation warning.
-	if !m.IsK8s() {
-		return false
 	}
 
-	for _, iTarg := range m.ImageTargets {
-		if iTarg.LiveUpdateInfo().ShouldRestart() {
-			return true
-		}
-	}
-
-	return false
+	return nil
 }
 
 // Grabs all image targets for the given references,