diff --git a/packages/connectivity/CHANGELOG.md b/packages/connectivity/CHANGELOG.md
index 5a7b5f7f4e05..3ede2383d207 100644
--- a/packages/connectivity/CHANGELOG.md
+++ b/packages/connectivity/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.4.5+4
+
+* Stability and Maintainability: update documentations.
+
 ## 0.4.5+3
 
 * Remove AndroidX warnings.
diff --git a/packages/connectivity/example/README.md b/packages/connectivity/example/README.md
deleted file mode 100644
index a7bac8c32e46..000000000000
--- a/packages/connectivity/example/README.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# connectivity_example
-
-Demonstrates how to use the connectivity plugin.
-
-## Getting Started
-
-For help getting started with Flutter, view our online
-[documentation](http://flutter.io/).
\ No newline at end of file
diff --git a/packages/connectivity/lib/connectivity.dart b/packages/connectivity/lib/connectivity.dart
index 03659f5455a9..8108b5c52a79 100644
--- a/packages/connectivity/lib/connectivity.dart
+++ b/packages/connectivity/lib/connectivity.dart
@@ -15,6 +15,7 @@ import 'package:meta/meta.dart';
 /// None: Device not connected to any network
 enum ConnectivityResult { wifi, mobile, none }
 
+/// Discover network connectivity configurations: Distinguish between WI-FI and cellular, check WI-FI status and more.
 class Connectivity {
   /// Constructs a singleton instance of [Connectivity].
   ///
@@ -35,11 +36,13 @@ class Connectivity {
 
   Stream<ConnectivityResult> _onConnectivityChanged;
 
+  /// Exposed for testing purposes and should not be used by users of the plugin.
   @visibleForTesting
   static const MethodChannel methodChannel = MethodChannel(
     'plugins.flutter.io/connectivity',
   );
 
+  /// Exposed for testing purposes and should not be used by users of the plugin.
   @visibleForTesting
   static const EventChannel eventChannel = EventChannel(
     'plugins.flutter.io/connectivity_status',
diff --git a/packages/connectivity/pubspec.yaml b/packages/connectivity/pubspec.yaml
index 4466c7ef6054..ede6c241c836 100644
--- a/packages/connectivity/pubspec.yaml
+++ b/packages/connectivity/pubspec.yaml
@@ -3,7 +3,7 @@ description: Flutter plugin for discovering the state of the network (WiFi &
   mobile/cellular) connectivity on Android and iOS.
 author: Flutter Team <flutter-dev@googlegroups.com>
 homepage: https://github.com/flutter/plugins/tree/master/packages/connectivity
-version: 0.4.5+3
+version: 0.4.5+4
 
 flutter:
   plugin: