Before upgrading your Magento extension:
Test the upgrade in your staging environment connected to our sandbox before pushing it live
Keep a copy of your Magento store and database so that you can rollback to the previous version if necessary
You may need to re-index all of the product and category tables after upgrading the extension
You have several options for how to install the Magento extension.
## Upgrade using modgit
Upgrade the extension by going to **MAGENTO_ROOT** and running
## Upgrade using modman
Upgrade the extension by going to **MAGENTO_ROOT** and running
## Upgrade using Magento Connect Manager
In your Magento admin panel, go to **System > Magento Connect > Magento Connect Manager**.
Under Manage Existing Extensions, select Uninstall under **Actions** for **Affirm_Affirm** package name.
Click **Commit Changes**.
Download the latest package release (the compressed .tgz file).
In your Magento admin panel, go to **System > Magento Connect > Magento Connect Manager**.
Click **Choose File** and select the downloaded package release file..
Click **Upload**.
## Upgrade using Affirm's deploy script
1\. Download the latest Makefile, which requires git and wge.t 2\. Copy the Makefile to **MAGENTO_ROOT**. 3\. To install, run the command **make install**. 4\. To update, run the command **make update**.
**Known installation issues**
If you upgrade the extension from version 2.x to 3.x via SSH, you may see Affirm promotional banners displayed twice. To fix this issue, remove the following from the Magento directory:
`
MAGENTO_ROOT/app/code/community/Affirm/Affirm/Model`: `Pricer.php``
MAGENTO_ROOT/app/code/community/Affirm`: `AffirmPromo``
MAGENTO_ROOT/app/design/frontend/base/default/template`: `affirmpromo``
MAGENTO_ROOT/app/etc/modules`: `Affirm_AffirmPromo.xml``
MAGENTO_ROOT/lib`: `Affirm`