diff --git a/envoy/COMMIT b/envoy/COMMIT
index 9413417e0..8728000ee 100644
--- a/envoy/COMMIT
+++ b/envoy/COMMIT
@@ -1 +1 @@
-29d30aa2ea190d67c04cdc26f23c5c9954460ab4
+e8be26c404e12576bad3551a01b58c9bcdedd154
diff --git a/envoy/extensions/filters/http/alternate_protocols_cache/v3/alternate_protocols_cache.pb.go b/envoy/extensions/filters/http/alternate_protocols_cache/v3/alternate_protocols_cache.pb.go
index f0c5c1654..781355902 100755
--- a/envoy/extensions/filters/http/alternate_protocols_cache/v3/alternate_protocols_cache.pb.go
+++ b/envoy/extensions/filters/http/alternate_protocols_cache/v3/alternate_protocols_cache.pb.go
@@ -8,6 +8,7 @@ package alternate_protocols_cachev3
 
 import (
 	_ "github.com/cncf/xds/go/udpa/annotations"
+	_ "github.com/envoyproxy/go-control-plane/envoy/annotations"
 	v3 "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@@ -29,10 +30,10 @@ type FilterConfig struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// If set, causes the use of the alternate protocols cache, which is responsible for
-	// parsing and caching HTTP Alt-Svc headers. This enables the use of HTTP/3 for upstream
-	// servers that advertise supporting it.
-	// TODO(RyanTheOptimist): Make this field required when HTTP/3 is enabled via auto_http.
+	// This field is ignored: the alternate protocols cache filter will use the
+	// cache for the cluster the request is routed to.
+	//
+	// Deprecated: Marked as deprecated in envoy/extensions/filters/http/alternate_protocols_cache/v3/alternate_protocols_cache.proto.
 	AlternateProtocolsCacheOptions *v3.AlternateProtocolsCacheOptions `protobuf:"bytes,1,opt,name=alternate_protocols_cache_options,json=alternateProtocolsCacheOptions,proto3" json:"alternate_protocols_cache_options,omitempty"`
 }
 
@@ -68,6 +69,7 @@ func (*FilterConfig) Descriptor() ([]byte, []int) {
 	return file_envoy_extensions_filters_http_alternate_protocols_cache_v3_alternate_protocols_cache_proto_rawDescGZIP(), []int{0}
 }
 
+// Deprecated: Marked as deprecated in envoy/extensions/filters/http/alternate_protocols_cache/v3/alternate_protocols_cache.proto.
 func (x *FilterConfig) GetAlternateProtocolsCacheOptions() *v3.AlternateProtocolsCacheOptions {
 	if x != nil {
 		return x.AlternateProtocolsCacheOptions
@@ -89,34 +91,37 @@ var file_envoy_extensions_filters_http_alternate_protocols_cache_v3_alternate_pr
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 }
 
 var (