diff --git a/CHANGELOG.md b/CHANGELOG.md
index 816e427..f29b6cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 All notable changes to this project will be documented in this file.
 This project follows [Semantic Versioning](http://semver.org).
 
+## 2.0.0 / 2015-03-04
+ - add: --concurrency option.
+ - change: set a default concurrency (maxSockets) to prevent DOSing sites on Node >=0.12.
+ - change: --compare option shorthand to -p.
+ - change: update dependencies.
+
 ## 1.4.0 / 2015-02-16
  - change: detect misc ASP.NET UnhandledException errors.
 
diff --git a/package.json b/package.json
index 994d597..492068e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "medic",
-  "version": "1.4.0",
+  "version": "2.0.0",
   "description": "Perform bulk URL status checks and track changes.",
   "author": "Roland Warmerdam (https://rolandwarmerdam.co.nz)",
   "keywords": [