[device_info] null safety stable  (#3626)

diff --git a/packages/device_info/device_info/CHANGELOG.md b/packages/device_info/device_info/CHANGELOG.md
index 910d265..f849131 100644
--- a/packages/device_info/device_info/CHANGELOG.md
+++ b/packages/device_info/device_info/CHANGELOG.md
@@ -1,14 +1,7 @@
-## 2.0.0-nullsafety.2
-
-* Fix outdated links across a number of markdown files ([#3276](https://github.com/flutter/plugins/pull/3276))
-
-## 2.0.0-nullsafety.1
-
-* Bump Dart SDK to support null safety.
-
-## 2.0.0-nullsafety
+## 2.0.0
 
 * Migrate to null safety.
+* Fix outdated links across a number of markdown files ([#3276](https://github.com/flutter/plugins/pull/3276))
 
 ## 1.0.1
 
diff --git a/packages/device_info/device_info/example/pubspec.yaml b/packages/device_info/device_info/example/pubspec.yaml
index 1f63697..bc7d00e 100644
--- a/packages/device_info/device_info/example/pubspec.yaml
+++ b/packages/device_info/device_info/example/pubspec.yaml
@@ -17,11 +17,11 @@
     sdk: flutter
   integration_test:
     path: ../../../integration_test
-  pedantic: ^1.10.0-nullsafety.1
+  pedantic: ^1.10.0
 
 flutter:
   uses-material-design: true
 
 environment:
-  sdk: ">=2.10.0-56.0.dev <3.0.0"
+  sdk: ">=2.12.0-259.9.beta <3.0.0"
   flutter: ">=1.12.13+hotfix.5"
diff --git a/packages/device_info/device_info/pubspec.yaml b/packages/device_info/device_info/pubspec.yaml
index bcdc7c8..0196338 100644
--- a/packages/device_info/device_info/pubspec.yaml
+++ b/packages/device_info/device_info/pubspec.yaml
@@ -2,7 +2,7 @@
 description: Flutter plugin providing detailed information about the device
   (make, model, etc.), and Android or iOS version the app is running on.
 homepage: https://github.com/flutter/plugins/tree/master/packages/device_info
-version: 2.0.0-nullsafety.2
+version: 2.0.0
 
 flutter:
   plugin:
@@ -16,13 +16,13 @@
 dependencies:
   flutter:
     sdk: flutter
-  device_info_platform_interface: ^2.0.0-nullsafety.1
+  device_info_platform_interface: ^2.0.0
 dev_dependencies:
-  test: ^1.10.0-nullsafety.1
+  test: ^1.16.3
   flutter_test:
     sdk: flutter
-  pedantic: ^1.10.0-nullsafety.1
+  pedantic: ^1.10.0
 
 environment:
-  sdk: ">=2.12.0-0 <3.0.0"
+  sdk: ">=2.12.0-259.9.beta <3.0.0"
   flutter: ">=1.12.13+hotfix.5"