diff --git a/CHANGELOG.md b/CHANGELOG.md
index e04942bfd82..6562b204ed9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,23 @@
 Change Log
 ===
 
+v3.4.0-dev.1
+---
+* [enhancement] Revamped testing system (#620)
+  * Writing tests for rules is now much simpler with a linter DSL.
+    See exisitng tests in `test/rules/**/*.ts.lint` for examples.
+* [enhancement] New msbuild formatter (#947)
+* [bugfix] Fix handling of multiline literals in `trailing-comma` rule (#856)
+* [bugfix] `one-line` rule correctly checks space between `catch` and opening brace (#925)
+* [bugfix] `one-line` rule correctly checks multiline variable declarations (#935)
+* [enhancement] New option `check-finally` for `one-line` rule (#925)
+* __BREAKING CHANGES__
+  * [bugfix] Report error when a rule in the config file is not found (#598)
+
+Thanks to our contributors!
+* @mmv
+* @pe8ter
+
 v3.3.0-dev.2
 ---
 * Add TypeScript peer dependency `>=1.9.0-dev` to support latest nightlies
diff --git a/package.json b/package.json
index 24d9abd393d..ca9661f8f38 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tslint",
-  "version": "3.3.0-dev.2",
+  "version": "3.4.0-dev.1",
   "description": "a static analysis linter for TypeScript",
   "bin": {
     "tslint": "./bin/tslint"
diff --git a/src/tslint.ts b/src/tslint.ts
index 4b65d6109a3..d6d1a2be689 100644
--- a/src/tslint.ts
+++ b/src/tslint.ts
@@ -25,7 +25,7 @@ import {ILinterOptions, LintResult} from "./lint";
 import {loadRules} from "./ruleLoader";
 
 class Linter {
-    public static VERSION = "3.3.0-dev.2";
+    public static VERSION = "3.4.0-dev.1";
     public static findConfiguration = config;
 
     private fileName: string;