@@ -23,7 +23,7 @@ import (

 	"github.com/docker/docker/distribution/metadata"

 	"github.com/docker/docker/distribution/xfer"

 	"github.com/docker/docker/image"

-	"github.com/docker/docker/image/v1"

+	v1 "github.com/docker/docker/image/v1"

 	"github.com/docker/docker/layer"

 	"github.com/docker/docker/pkg/ioutils"

 	"github.com/docker/docker/pkg/progress"

@@ -392,6 +392,10 @@ func (p *v2Puller) pullV2Tag(ctx context.Context, ref reference.Named, platform

 		if p.config.RequireSchema2 {

 			return false, fmt.Errorf("invalid manifest: not schema2")

 		}

+		msg := schema1DeprecationMessage(ref)

+		logrus.Warn(msg)

+		progress.Message(p.config.ProgressOutput, "", msg)

+

 		id, manifestDigest, err = p.pullSchema1(ctx, ref, v, platform)

 		if err != nil {

 			return false, err

@@ -787,6 +791,10 @@ func (p *v2Puller) pullManifestList(ctx context.Context, ref reference.Named, mf

 	switch v := manifest.(type) {

 	case *schema1.SignedManifest:

+		msg := schema1DeprecationMessage(ref)

+		logrus.Warn(msg)

+		progress.Message(p.config.ProgressOutput, "", msg)

+

 		platform := toOCIPlatform(manifestMatches[0].Platform)

 		id, _, err = p.pullSchema1(ctx, manifestRef, v, &platform)

 		if err != nil {

@@ -188,6 +188,10 @@ func (p *v2Pusher) pushV2Tag(ctx context.Context, ref reference.NamedTagged, id

 		logrus.Warnf("failed to upload schema2 manifest: %v - falling back to schema1", err)

+		msg := schema1DeprecationMessage(ref)

+		logrus.Warn(msg)

+		progress.Message(p.config.ProgressOutput, "", msg)

+

 		manifestRef, err := reference.WithTag(p.repo.Named(), ref.Tag())

 		if err != nil {

 			return err

@@ -156,3 +156,7 @@ func (th *existingTokenHandler) AuthorizeRequest(req *http.Request, params map[s

 	req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", th.token))

 	return nil

 }

+

+func schema1DeprecationMessage(ref reference.Named) string {

+	return fmt.Sprintf("[DEPRECATION NOTICE] registry v2 schema1 support will be removed in an upcoming release. Please contact admins of the %s registry NOW to avoid future disruption.", reference.Domain(ref))

+}