diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e3383683..7711e0172 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 # Change Log
 All notable changes to this project will be documented in this file.
 
+## [9.12.0] - 2019-08-15
+- [PR #892](https://github.com/sendgrid/sendgrid-csharp/pull/892) Replace nuspec and AssemblyInfo with csproj. Big thanks to [Jonas Nyrup](https://github.com/jnyrup) for the PR!
+- [PR #876](https://github.com/sendgrid/sendgrid-csharp/pull/876) Add `EmailAddress` attribute. Big thanks to [Jonathan](https://github.com/vanillajonathan) for the PR!
+- [PR #839](https://github.com/sendgrid/sendgrid-csharp/pull/839) Refactored SendGridClient to support inject external managed HttpClient. Big thanks to [Charley Wu](https://github.com/akunzai) for the PR!
+
 ## [9.11.0] - 2019-04-18
 ## Added
 - [PR #877](https://github.com/sendgrid/sendgrid-csharp/pull/877) Twilio SMS example and branding update. 
diff --git a/src/SendGrid/SendGrid.csproj b/src/SendGrid/SendGrid.csproj
index 38d1ae4e3..817bc748c 100644
--- a/src/SendGrid/SendGrid.csproj
+++ b/src/SendGrid/SendGrid.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <VersionPrefix>9.11.0</VersionPrefix>
+    <VersionPrefix>9.12.0</VersionPrefix>
     <TargetFrameworks>netstandard1.3;netstandard2.0;net452</TargetFrameworks>
     <PlatformTarget>anycpu</PlatformTarget>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>