diff --git a/docs/GamUpdates.md b/docs/GamUpdates.md
index c262d140..eea5ced5 100644
--- a/docs/GamUpdates.md
+++ b/docs/GamUpdates.md
@@ -10,6 +10,10 @@ Add the `-s` option to the end of the above commands to suppress creating the `g
 
 See [Downloads-Installs-GAM7](https://github.com/GAM-team/GAM/wiki/Downloads-Installs) for Windows or other options, including manual installation
 
+### 7.00.20
+
+Fix Windows MSI installer issues on version upgrade. If you are having issues upgrading from a version older than 7.00.20 to this version or newer you may need to do a one time uninstall of GAM7 and then reinstall the new version. No configuration files will be lost during the uninstall / reinstall.
+
 ### 7.00.19
 
 Updated `gam update shareddrive <SharedDriveEntity> ou <OrgUnitItem>` to handle the following error
diff --git a/src/GamUpdate.txt b/src/GamUpdate.txt
index b93dd5ec..2feca72a 100644
--- a/src/GamUpdate.txt
+++ b/src/GamUpdate.txt
@@ -1,3 +1,7 @@
+7.00.20
+
+Fix Windows MSI installer issues on version upgrade. If you are having issues upgrading from a version older than 7.00.20 to this version or newer you may need to do a one time uninstall of GAM7 and then reinstall the new version. No configuration files will be lost during the uninstall / reinstall.
+
 7.00.19
 
 Updated `gam update shareddrive <SharedDriveEntity> ou <OrgUnitItem>` to handle the following error
diff --git a/src/gam/__init__.py b/src/gam/__init__.py
index 9ff01904..a7e3a89b 100755
--- a/src/gam/__init__.py
+++ b/src/gam/__init__.py
@@ -25,7 +25,7 @@ https://github.com/GAM-team/GAM/wiki
 """
 
 __author__ = 'GAM Team <google-apps-manager@googlegroups.com>'
-__version__ = '7.00.19'
+__version__ = '7.00.20'
 __license__ = 'Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0)'
 
 #pylint: disable=wrong-import-position