diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c28de77b..44a6a4053 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,22 @@ All notable changes to this project will be documented in this file.
 
 #### 3.x Releases
 
+## [3.4.0](https://github.com/checkout/frames-ios/releases/tag/3.4.0)
+
+Released on 2021-03-31.
+
+#### Added
+
+* User-agent for requests.
+
+#### Fixed
+
+* Response objects are now decoded properly using snake case.
+* Distribution via Swift Package Manager is now fixed.
+
+### Removed
+* PhoneNumberKit source files have been removed, which were embedded in the framework. This includes `CKOPhoneNumberKit`. PhoneNumberKit is now referenced from the Podspec and Swift Package Manager configuration.
+
 ## [3.3.0](https://github.com/checkout/frames-ios/releases/tag/3.3.0)
 
 Released on 2021-02-24.
diff --git a/Frames.podspec b/Frames.podspec
index 27ebbf648..f1c859ced 100644
--- a/Frames.podspec
+++ b/Frames.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "Frames"
-  s.version      = "3.3.0"
+  s.version      = "3.4.0"
   s.summary      = "Checkout API Client, Payment Form UI and Utilities in Swift"
   s.description  = <<-DESC
   Checkout API Client and Payment Form Utilities in Swift.
diff --git a/README.md b/README.md
index 0366c763d..e4877f198 100644
--- a/README.md
+++ b/README.md
@@ -68,13 +68,25 @@ $ brew update
 $ brew install carthage
 ```
 
-To integrate FramesIos into your Xcode project using Carthage, specify it in your `Cartfile`:
+To integrate Frames into your Xcode project using Carthage, specify it in your `Cartfile`:
 
 ```ogdl
 github "checkout/frames-ios" ~> 3.0
 ```
 
-Run `carthage update` to build the framework and drag the built `FramesIos` into your Xcode project.
+Run `carthage update` to build the framework and drag the built `Frames` into your Xcode project.
+
+### Swift Package Manager
+
+[Swift Package Manager](https://swift.org/package-manager/) is a tool for automating the distribution of Swift code and is integrated into the swift compiler.
+
+Once you have your Swift package set up, adding Frames as a dependency is as easy as adding it to the `dependencies` value of your `Package.swift`.
+
+```
+dependencies: [
+    .package(url: "https://github.com/checkout/frames-ios.git", .upToNextMajor(from: "3.0.0"))
+]
+```
 
 ## Usage
 
diff --git a/Source/CheckoutAPIClient+Constants.swift b/Source/CheckoutAPIClient+Constants.swift
index 506cf2687..34b0a5693 100644
--- a/Source/CheckoutAPIClient+Constants.swift
+++ b/Source/CheckoutAPIClient+Constants.swift
@@ -9,6 +9,6 @@ import Foundation
 
 extension CheckoutAPIClient {
     enum Constants {
-        static let version = "3.3.0"
+        static let version = "3.4.0"
     }
 }