stable null safety release (#62)

diff --git a/changelog.md b/changelog.md
index 883c8c6..688b3db 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,7 @@
+## 2.0.0
+
+- Stable null safety release.
+
 ## 2.0.0-nullsafety.0
 
 - Opt in to null safety.
diff --git a/pubspec.yaml b/pubspec.yaml
index 33d865d..7a57cca 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: benchmark_harness
-version: 2.0.0-nullsafety.0
+version: 2.0.0
 author: Dart Team <misc@dartlang.org>
 description: The official Dart project benchmark harness.
 homepage: https://github.com/dart-lang/benchmark_harness