diff --git a/go/go.mod b/go/go.mod
index 6fb6bec..fadb0ef 100644
--- a/go/go.mod
+++ b/go/go.mod
@@ -4,5 +4,5 @@ go 1.18
 
 require (
 	github.com/golang/protobuf v1.5.2
-	google.golang.org/protobuf v1.27.1
+	google.golang.org/protobuf v1.28.0
 )
diff --git a/go/go.sum b/go/go.sum
index 85ba719..e95b5e9 100644
--- a/go/go.sum
+++ b/go/go.sum
@@ -7,5 +7,5 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IV
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
-google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
+google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
diff --git a/go/vendor/google.golang.org/protobuf/encoding/protowire/wire.go b/go/vendor/google.golang.org/protobuf/encoding/protowire/wire.go
index a427f8b..9c61112 100644
--- a/go/vendor/google.golang.org/protobuf/encoding/protowire/wire.go
+++ b/go/vendor/google.golang.org/protobuf/encoding/protowire/wire.go
@@ -21,10 +21,11 @@ import (
 type Number int32
 
 const (
-	MinValidNumber      Number = 1
-	FirstReservedNumber Number = 19000
-	LastReservedNumber  Number = 19999
-	MaxValidNumber      Number = 1<<29 - 1
+	MinValidNumber        Number = 1
+	FirstReservedNumber   Number = 19000
+	LastReservedNumber    Number = 19999
+	MaxValidNumber        Number = 1<<29 - 1
+	DefaultRecursionLimit        = 10000
 )
 
 // IsValid reports whether the field number is semantically valid.
@@ -55,6 +56,7 @@ const (
 	errCodeOverflow
 	errCodeReserved
 	errCodeEndGroup
+	errCodeRecursionDepth
 )
 
 var (
@@ -112,6 +114,10 @@ func ConsumeField(b []byte) (Number, Type, int) {
 // When parsing a group, the length includes the end group marker and
 // the end group is verified to match the starting field number.
 func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) {
+	return consumeFieldValueD(num, typ, b, DefaultRecursionLimit)
+}
+
+func consumeFieldValueD(num Number, typ Type, b []byte, depth int) (n int) {
 	switch typ {
 	case VarintType:
 		_, n = ConsumeVarint(b)
@@ -126,6 +132,9 @@ func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) {
 		_, n = ConsumeBytes(b)
 		return n
 	case StartGroupType:
+		if depth < 0 {
+			return errCodeRecursionDepth
+		}
 		n0 := len(b)
 		for {
 			num2, typ2, n := ConsumeTag(b)
@@ -140,7 +149,7 @@ func ConsumeFieldValue(num Number, typ Type, b []byte) (n int) {
 				return n0 - len(b)
 			}
 
-			n = ConsumeFieldValue(num2, typ2, b)
+			n = consumeFieldValueD(num2, typ2, b, depth-1)
 			if n < 0 {
 				return n // forward error code
 			}
diff --git a/go/vendor/google.golang.org/protobuf/internal/encoding/text/decode.go b/go/vendor/google.golang.org/protobuf/internal/encoding/text/decode.go
index eb10ea1..3780377 100644
--- a/go/vendor/google.golang.org/protobuf/internal/encoding/text/decode.go
+++ b/go/vendor/google.golang.org/protobuf/internal/encoding/text/decode.go
@@ -381,7 +381,7 @@ func (d *Decoder) currentOpenKind() (Kind, byte) {
 	case '[':
 		return ListOpen, ']'
 	}
-	panic(fmt.Sprintf("Decoder: openStack contains invalid byte %s", string(openCh)))
+	panic(fmt.Sprintf("Decoder: openStack contains invalid byte %c", openCh))
 }
 
 func (d *Decoder) pushOpenStack(ch byte) {
diff --git a/go/vendor/google.golang.org/protobuf/internal/errors/is_go112.go b/go/vendor/google.golang.org/protobuf/internal/errors/is_go112.go
index f90e909..fbcd349 100644
--- a/go/vendor/google.golang.org/protobuf/internal/errors/is_go112.go
+++ b/go/vendor/google.golang.org/protobuf/internal/errors/is_go112.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !go1.13
 // +build !go1.13
 
 package errors
diff --git a/go/vendor/google.golang.org/protobuf/internal/errors/is_go113.go b/go/vendor/google.golang.org/protobuf/internal/errors/is_go113.go
index dc05f41..5e72f1c 100644
--- a/go/vendor/google.golang.org/protobuf/internal/errors/is_go113.go
+++ b/go/vendor/google.golang.org/protobuf/internal/errors/is_go113.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build go1.13
 // +build go1.13
 
 package errors
diff --git a/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_disable.go b/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_disable.go
index a72995f..bda8e8c 100644
--- a/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_disable.go
+++ b/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_disable.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !protolegacy
 // +build !protolegacy
 
 package flags
diff --git a/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_enable.go b/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_enable.go
index 772e2f0..6d8d9bd 100644
--- a/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_enable.go
+++ b/go/vendor/google.golang.org/protobuf/internal/flags/proto_legacy_enable.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build protolegacy
 // +build protolegacy
 
 package flags
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go111.go b/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go111.go
index 2706bb6..4b15493 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go111.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go111.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !go1.12
 // +build !go1.12
 
 package impl
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go112.go b/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go112.go
index 1533ef6..0b31b66 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go112.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/codec_map_go112.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build go1.12
 // +build go1.12
 
 package impl
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/codec_reflect.go b/go/vendor/google.golang.org/protobuf/internal/impl/codec_reflect.go
index 90705e3..145c577 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/codec_reflect.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/codec_reflect.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build purego || appengine
 // +build purego appengine
 
 package impl
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/codec_unsafe.go b/go/vendor/google.golang.org/protobuf/internal/impl/codec_unsafe.go
index e118af1..757642e 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/codec_unsafe.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/codec_unsafe.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !purego && !appengine
 // +build !purego,!appengine
 
 package impl
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/decode.go b/go/vendor/google.golang.org/protobuf/internal/impl/decode.go
index 949dc49..c65b032 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/decode.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/decode.go
@@ -18,6 +18,7 @@ import (
 )
 
 var errDecode = errors.New("cannot parse invalid wire-format data")
+var errRecursionDepth = errors.New("exceeded maximum recursion depth")
 
 type unmarshalOptions struct {
 	flags    protoiface.UnmarshalInputFlags
@@ -25,6 +26,7 @@ type unmarshalOptions struct {
 		FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
 		FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
 	}
+	depth int
 }
 
 func (o unmarshalOptions) Options() proto.UnmarshalOptions {
@@ -44,6 +46,7 @@ func (o unmarshalOptions) IsDefault() bool {
 
 var lazyUnmarshalOptions = unmarshalOptions{
 	resolver: preg.GlobalTypes,
+	depth:    protowire.DefaultRecursionLimit,
 }
 
 type unmarshalOutput struct {
@@ -62,6 +65,7 @@ func (mi *MessageInfo) unmarshal(in piface.UnmarshalInput) (piface.UnmarshalOutp
 	out, err := mi.unmarshalPointer(in.Buf, p, 0, unmarshalOptions{
 		flags:    in.Flags,
 		resolver: in.Resolver,
+		depth:    in.Depth,
 	})
 	var flags piface.UnmarshalOutputFlags
 	if out.initialized {
@@ -82,6 +86,10 @@ var errUnknown = errors.New("unknown")
 
 func (mi *MessageInfo) unmarshalPointer(b []byte, p pointer, groupTag protowire.Number, opts unmarshalOptions) (out unmarshalOutput, err error) {
 	mi.init()
+	opts.depth--
+	if opts.depth < 0 {
+		return out, errRecursionDepth
+	}
 	if flags.ProtoLegacy && mi.isMessageSet {
 		return unmarshalMessageSet(mi, b, p, opts)
 	}
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/pointer_reflect.go b/go/vendor/google.golang.org/protobuf/internal/impl/pointer_reflect.go
index 9e3ed82..4c491bd 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/pointer_reflect.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/pointer_reflect.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build purego || appengine
 // +build purego appengine
 
 package impl
diff --git a/go/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go b/go/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go
index 9ecf23a..ee0e057 100644
--- a/go/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go
+++ b/go/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !purego && !appengine
 // +build !purego,!appengine
 
 package impl
diff --git a/go/vendor/google.golang.org/protobuf/internal/strs/strings_pure.go b/go/vendor/google.golang.org/protobuf/internal/strs/strings_pure.go
index 85e074c..a1f6f33 100644
--- a/go/vendor/google.golang.org/protobuf/internal/strs/strings_pure.go
+++ b/go/vendor/google.golang.org/protobuf/internal/strs/strings_pure.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build purego || appengine
 // +build purego appengine
 
 package strs
diff --git a/go/vendor/google.golang.org/protobuf/internal/strs/strings_unsafe.go b/go/vendor/google.golang.org/protobuf/internal/strs/strings_unsafe.go
index 2160c70..56a8a4e 100644
--- a/go/vendor/google.golang.org/protobuf/internal/strs/strings_unsafe.go
+++ b/go/vendor/google.golang.org/protobuf/internal/strs/strings_unsafe.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !purego && !appengine
 // +build !purego,!appengine
 
 package strs
diff --git a/go/vendor/google.golang.org/protobuf/internal/version/version.go b/go/vendor/google.golang.org/protobuf/internal/version/version.go
index 14e774f..3d40d52 100644
--- a/go/vendor/google.golang.org/protobuf/internal/version/version.go
+++ b/go/vendor/google.golang.org/protobuf/internal/version/version.go
@@ -52,8 +52,8 @@ import (
 //	10. Send out the CL for review and submit it.
 const (
 	Major      = 1
-	Minor      = 27
-	Patch      = 1
+	Minor      = 28
+	Patch      = 0
 	PreRelease = ""
 )
 
diff --git a/go/vendor/google.golang.org/protobuf/proto/decode.go b/go/vendor/google.golang.org/protobuf/proto/decode.go
index 49f9b8c..11bf717 100644
--- a/go/vendor/google.golang.org/protobuf/proto/decode.go
+++ b/go/vendor/google.golang.org/protobuf/proto/decode.go
@@ -42,18 +42,25 @@ type UnmarshalOptions struct {
 		FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
 		FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
 	}
+
+	// RecursionLimit limits how deeply messages may be nested.
+	// If zero, a default limit is applied.
+	RecursionLimit int
 }
 
 // Unmarshal parses the wire-format message in b and places the result in m.
 // The provided message must be mutable (e.g., a non-nil pointer to a message).
 func Unmarshal(b []byte, m Message) error {
-	_, err := UnmarshalOptions{}.unmarshal(b, m.ProtoReflect())
+	_, err := UnmarshalOptions{RecursionLimit: protowire.DefaultRecursionLimit}.unmarshal(b, m.ProtoReflect())
 	return err
 }
 
 // Unmarshal parses the wire-format message in b and places the result in m.
 // The provided message must be mutable (e.g., a non-nil pointer to a message).
 func (o UnmarshalOptions) Unmarshal(b []byte, m Message) error {
+	if o.RecursionLimit == 0 {
+		o.RecursionLimit = protowire.DefaultRecursionLimit
+	}
 	_, err := o.unmarshal(b, m.ProtoReflect())
 	return err
 }
@@ -63,6 +70,9 @@ func (o UnmarshalOptions) Unmarshal(b []byte, m Message) error {
 // This method permits fine-grained control over the unmarshaler.
 // Most users should use Unmarshal instead.
 func (o UnmarshalOptions) UnmarshalState(in protoiface.UnmarshalInput) (protoiface.UnmarshalOutput, error) {
+	if o.RecursionLimit == 0 {
+		o.RecursionLimit = protowire.DefaultRecursionLimit
+	}
 	return o.unmarshal(in.Buf, in.Message)
 }
 
@@ -86,12 +96,17 @@ func (o UnmarshalOptions) unmarshal(b []byte, m protoreflect.Message) (out proto
 			Message:  m,
 			Buf:      b,
 			Resolver: o.Resolver,
+			Depth:    o.RecursionLimit,
 		}
 		if o.DiscardUnknown {
 			in.Flags |= protoiface.UnmarshalDiscardUnknown
 		}
 		out, err = methods.Unmarshal(in)
 	} else {
+		o.RecursionLimit--
+		if o.RecursionLimit < 0 {
+			return out, errors.New("exceeded max recursion depth")
+		}
 		err = o.unmarshalMessageSlow(b, m)
 	}
 	if err != nil {
diff --git a/go/vendor/google.golang.org/protobuf/proto/proto_methods.go b/go/vendor/google.golang.org/protobuf/proto/proto_methods.go
index d8dd604..465e057 100644
--- a/go/vendor/google.golang.org/protobuf/proto/proto_methods.go
+++ b/go/vendor/google.golang.org/protobuf/proto/proto_methods.go
@@ -3,6 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // The protoreflect build tag disables use of fast-path methods.
+//go:build !protoreflect
 // +build !protoreflect
 
 package proto
diff --git a/go/vendor/google.golang.org/protobuf/proto/proto_reflect.go b/go/vendor/google.golang.org/protobuf/proto/proto_reflect.go
index b103d43..494d6ce 100644
--- a/go/vendor/google.golang.org/protobuf/proto/proto_reflect.go
+++ b/go/vendor/google.golang.org/protobuf/proto/proto_reflect.go
@@ -3,6 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // The protoreflect build tag disables use of fast-path methods.
+//go:build protoreflect
 // +build protoreflect
 
 package proto
diff --git a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/methods.go b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/methods.go
index 6be5d16..d5d5af6 100644
--- a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/methods.go
+++ b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/methods.go
@@ -53,6 +53,7 @@ type (
 			FindExtensionByName(field FullName) (ExtensionType, error)
 			FindExtensionByNumber(message FullName, field FieldNumber) (ExtensionType, error)
 		}
+		Depth int
 	}
 	unmarshalOutput = struct {
 		pragma.NoUnkeyedLiterals
diff --git a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_pure.go b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_pure.go
index 918e685..7ced876 100644
--- a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_pure.go
+++ b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_pure.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build purego || appengine
 // +build purego appengine
 
 package protoreflect
diff --git a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_union.go b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_union.go
index 5a34147..eb7764c 100644
--- a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_union.go
+++ b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_union.go
@@ -41,6 +41,31 @@ import (
 // Converting to/from a Value and a concrete Go value panics on type mismatch.
 // For example, ValueOf("hello").Int() panics because this attempts to
 // retrieve an int64 from a string.
+//
+// List, Map, and Message Values are called "composite" values.
+//
+// A composite Value may alias (reference) memory at some location,
+// such that changes to the Value updates the that location.
+// A composite value acquired with a Mutable method, such as Message.Mutable,
+// always references the source object.
+//
+// For example:
+//	// Append a 0 to a "repeated int32" field.
+//	// Since the Value returned by Mutable is guaranteed to alias
+//	// the source message, modifying the Value modifies the message.
+//	message.Mutable(fieldDesc).(List).Append(protoreflect.ValueOfInt32(0))
+//
+//	// Assign [0] to a "repeated int32" field by creating a new Value,
+//	// modifying it, and assigning it.
+//	list := message.NewField(fieldDesc).(List)
+//	list.Append(protoreflect.ValueOfInt32(0))
+//	message.Set(fieldDesc, list)
+//	// ERROR: Since it is not defined whether Set aliases the source,
+//	// appending to the List here may or may not modify the message.
+//	list.Append(protoreflect.ValueOfInt32(0))
+//
+// Some operations, such as Message.Get, may return an "empty, read-only"
+// composite Value. Modifying an empty, read-only value panics.
 type Value value
 
 // The protoreflect API uses a custom Value union type instead of interface{}
diff --git a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_unsafe.go b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_unsafe.go
index c45debd..702ddf2 100644
--- a/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_unsafe.go
+++ b/go/vendor/google.golang.org/protobuf/reflect/protoreflect/value_unsafe.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build !purego && !appengine
 // +build !purego,!appengine
 
 package protoreflect
diff --git a/go/vendor/google.golang.org/protobuf/runtime/protoiface/methods.go b/go/vendor/google.golang.org/protobuf/runtime/protoiface/methods.go
index 32c04f6..44cf467 100644
--- a/go/vendor/google.golang.org/protobuf/runtime/protoiface/methods.go
+++ b/go/vendor/google.golang.org/protobuf/runtime/protoiface/methods.go
@@ -103,6 +103,7 @@ type UnmarshalInput = struct {
 		FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error)
 		FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error)
 	}
+	Depth int
 }
 
 // UnmarshalOutput is output from the Unmarshal method.
diff --git a/go/vendor/modules.txt b/go/vendor/modules.txt
index e4be075..719facb 100644
--- a/go/vendor/modules.txt
+++ b/go/vendor/modules.txt
@@ -1,8 +1,8 @@
 # github.com/golang/protobuf v1.5.2
 ## explicit; go 1.9
 github.com/golang/protobuf/ptypes/timestamp
-# google.golang.org/protobuf v1.27.1
-## explicit; go 1.9
+# google.golang.org/protobuf v1.28.0
+## explicit; go 1.11
 google.golang.org/protobuf/encoding/prototext
 google.golang.org/protobuf/encoding/protowire
 google.golang.org/protobuf/internal/descfmt