Prepare for 2.1.0 release (#40)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7f7e4a9..dce9e49 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+#### 2.1.0
+
+* Add support for new `dart:io` API methods added in Dart SDK 1.23
+
 #### 2.0.1
 
 * Minor doc updates
diff --git a/pubspec.yaml b/pubspec.yaml
index 5ff29a7..5026759 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: file
-version: 2.0.1
+version: 2.1.0
 authors:
 - Matan Lurey <matanl@google.com>
 - Yegor Jbanov <yjbanov@google.com>
@@ -13,7 +13,7 @@
   path: ^1.4.0
 
 dev_dependencies:
-  test: ^0.12.10
+  test: ^0.12.18
 
 environment:
   sdk: '>=1.19.0 <2.0.0'