diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ba01f2..797aa71 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# [4.0.0](https://github.com/Electrode-iOS/ELRouter/releases/tag/v4.0.0)
+
+- Migrate to Swift 3
+
 # [3.1.1](https://github.com/Electrode-iOS/ELRouter/releases/tag/v3.1.1)
 
 - Changed `deepLinkComponents` to not decode escaped slashes when determining path components, but to pass encoded parts on instead.
diff --git a/ELRouter/Info.plist b/ELRouter/Info.plist
index d353b3e..1bcfa6d 100755
--- a/ELRouter/Info.plist
+++ b/ELRouter/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.1.1</string>
+	<string>4.0.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
diff --git a/README.md b/README.md
index 6232ffd..b3492ff 100755
--- a/README.md
+++ b/README.md
@@ -1,13 +1,14 @@
 # ELRouter 
 
-[![Version](https://img.shields.io/badge/version-v3.1.1-blue.svg)](https://github.com/Electrode-iOS/ELRouter/releases/latest)
+[![Version](https://img.shields.io/badge/version-v4.0.0-blue.svg)](https://github.com/Electrode-iOS/ELRouter/releases/latest)
 [![Build Status](https://travis-ci.org/Electrode-iOS/ELRouter.svg?branch=master)](https://travis-ci.org/Electrode-iOS/ELRouter)
+[![Carthage Compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
 
 ELRouter.framework. A URL router for UIKit.
 
 ## Requirements
 
-ELRouter requires Swift 3, Xcode 8.1 and depends on [`ELFoundation`](https://github.com/Electrode-iOS/ELFoundation).
+ELRouter requires Swift 3, Xcode 8.1, and depends on [`ELFoundation`](https://github.com/Electrode-iOS/ELFoundation).
 
 ## Installation