diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27d46c26f7..7bf3d715a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,35 @@
 # vscode-powershell Release History
 
+## v1.9.0
+### Thursday, September 27, 2018
+#### [vscode-powershell](https://github.com/powershell/vscode-powershell)
+
+- [vscode-PowerShell #1548](https://github.com/PowerShell/vscode-PowerShell/pull/1548) -
+  Explicitly return `undefined` from resolveDbgConfig when session not started (Thanks @rkeithhill!)
+- [vscode-PowerShell #1516](https://github.com/PowerShell/vscode-PowerShell/pull/1516) -
+  Change "Get Online Help" menu item label to "Get Help" (Thanks @corbob!)
+- [vscode-PowerShell #1525](https://github.com/PowerShell/vscode-PowerShell/pull/1525) -
+  Remove duplicate/overlapping folding regions (Thanks @glennsarti!)
+
+#### [PowerShellEditorServices](https://github.com/powershell/PowerShellEditorServices)
+
+- [PowerShellEditorServices #750](https://github.com/PowerShell/PowerShellEditorServices/pull/750) -
+  Fix issue where # in path causes the path to resolve incorrectly
+- [PowerShellEditorServices #721](https://github.com/PowerShell/PowerShellEditorServices/pull/721) -
+  Change Get-Help behavior to return local help when online help can't be displayed  (Thanks @corbob!)
+- [PowerShellEditorServices #748](https://github.com/PowerShell/PowerShellEditorServices/pull/748) -
+  Fix index out-of-range exception when deleting script files
+- [PowerShellEditorServices #749](https://github.com/PowerShell/PowerShellEditorServices/pull/749) -
+  Fix crash for finding symbols on bad paths
+- [PowerShellEditorServices #740](https://github.com/PowerShell/PowerShellEditorServices/pull/740) -
+  Fix inner help completion
+- [PowerShellEditorServices #736](https://github.com/PowerShell/PowerShellEditorServices/pull/736) -
+  Cache the reflection call done for completions
+- [PowerShellEditorServices #737](https://github.com/PowerShell/PowerShellEditorServices/pull/737) -
+  Remove LINQ usage in language service methods
+- [PowerShellEditorServices #743](https://github.com/PowerShell/PowerShellEditorServices/pull/743) -
+  Remove unnecessary LINQ calls from LanguageServer
+
 ## v1.8.4
 ### Friday, August 31, 2018
 #### [vscode-powershell](https://github.com/powershell/vscode-powershell)
diff --git a/appveyor.yml b/appveyor.yml
index 03aa18c459..cf78a873f4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: '1.8.5-insiders-{build}'
+version: '1.9.0-insiders-{build}'
 image: Visual Studio 2017
 clone_depth: 10
 skip_tags: true
diff --git a/package.json b/package.json
index 61f20bacb0..d7b19e84f0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "PowerShell",
   "displayName": "PowerShell",
-  "version": "1.8.5",
+  "version": "1.9.0",
   "publisher": "ms-vscode",
   "description": "Develop PowerShell scripts in Visual Studio Code!",
   "engines": {
diff --git a/src/main.ts b/src/main.ts
index 8e13b80f52..d2fb7025bc 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -36,7 +36,7 @@ import utils = require("./utils");
 
 // NOTE: We will need to find a better way to deal with the required
 //       PS Editor Services version...
-const requiredEditorServicesVersion = "1.8.5";
+const requiredEditorServicesVersion = "1.9.0";
 
 let logger: Logger;
 let sessionManager: SessionManager;
diff --git a/tools/releaseBuild/Image/DockerFile b/tools/releaseBuild/Image/DockerFile
index 0ff93c872d..621573b5aa 100644
--- a/tools/releaseBuild/Image/DockerFile
+++ b/tools/releaseBuild/Image/DockerFile
@@ -23,7 +23,7 @@ COPY build.ps1 containerFiles/build.ps1
 
 # Add an environment variable for build versioning
 ENV VSTS_BUILD=1
-ENV VSTS_BUILD_VERSION=1.8.5
+ENV VSTS_BUILD_VERSION=1.9.0
 
 # Uncomment to debug locally
 # RUN Import-Module ./containerFiles/dockerInstall.psm1; `