diff --git a/CHANGELOG.md b/CHANGELOG.md
index 69c4140..0fc6826 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,15 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [4.0.2-beta] - 2017-06-10
+### Added
+- Improves performance
+  - Optimized git output parsing to increase speed and reduce memory usage
+  - Defers diff chunk parsing until it is actually required
+
+### Fixed
+- Fixes excessive memory usage when parsing diffs
+
 ## [4.0.1] - 2017-06-09
 ### Fixed
 - Fixes [#87](https://github.com/eamodio/vscode-gitlens/issues/87) - Can't open files in remote when using git@ urls (ssh)
diff --git a/package.json b/package.json
index 690aa81..7f22729 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "gitlens",
-    "version": "4.0.1",
+    "version": "4.0.2-beta",
     "author": {
         "name": "Eric Amodio",
         "email": "eamodio@gmail.com"