Allow 4.0.0 version for protobuf dependency and prepare to release 4.0.3 (#774)

Fixes https://github.com/grpc/grpc-dart/issues/768

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 4.0.3
+
+* Widen `package:protobuf` constraint to allow version 4.0.0.
+
 ## 4.0.2
 
 * Internal optimization to client code.

example/googleapis/pubspec.yaml

@@ -3,14 +3,14 @@ description: Dart gRPC client sample for Google APIs
 publish_to: none
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   async: ^2.2.0
   fixnum:
   grpc:
     path: ../../
-  protobuf: ^3.0.0
+  protobuf: ">=3.0.0 <5.0.0"
 
 dev_dependencies:
   lints: ^2.0.0

example/grpc-web/pubspec.yaml

@@ -8,7 +8,7 @@ environment:
 dependencies:
   grpc:
     path: ../../
-  protobuf: ^3.0.0
+  protobuf: ">=3.0.0 <5.0.0"
   web: ^1.1.0
 
 dev_dependencies:

example/helloworld/pubspec.yaml

@@ -3,13 +3,13 @@ description: Dart gRPC sample client and server.
 publish_to: none
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   async: ^2.2.0
   grpc:
     path: ../../
-  protobuf: ^3.0.0
+  protobuf: ">=3.0.0 <5.0.0"
 
 dev_dependencies:
   lints: ^2.0.0

example/metadata/pubspec.yaml

@@ -3,13 +3,13 @@ description: Dart gRPC sample client and server.
 publish_to: none
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   async: ^2.2.0
   grpc:
     path: ../../
-  protobuf: ^3.0.0
+  protobuf: ">=3.0.0 <5.0.0"
 
 dev_dependencies:
   lints: ^2.0.0

example/route_guide/pubspec.yaml

@@ -3,13 +3,13 @@ description: Dart gRPC sample client and server.
 publish_to: none
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   async: ^2.2.0
   grpc:
     path: ../../
-  protobuf: ^3.0.0
+  protobuf: ">=3.0.0 <5.0.0"
   collection: ^1.15.0-nullsafety.4
 
 dev_dependencies:

interop/pubspec.yaml

@@ -11,7 +11,7 @@ dependencies:
   collection: ^1.14.11
   grpc:
     path: ../
-  protobuf: ^3.0.0
+  protobuf: ">=3.0.0 <5.0.0"
 
 dev_dependencies:
   test: ^1.16.0

pubspec.yaml

@@ -1,5 +1,5 @@
 name: grpc
-version: 4.0.2
+version: 4.0.3
 description: Dart implementation of gRPC, a high performance, open-source universal RPC framework.
 repository: https://github.com/grpc/grpc-dart
 
@@ -17,9 +17,9 @@ dependencies:
   fixnum: ^1.0.0
   googleapis_auth: ^1.1.0
   meta: ^1.3.0
-  http: '>=0.13.0 <2.0.0'
+  http: ">=0.13.0 <2.0.0"
   http2: ^2.2.0
-  protobuf: '>=2.0.0 <4.0.0'
+  protobuf: ">=2.0.0 <5.0.0"
   clock: ^1.1.1
   web: ^1.1.0