On October, 27 Magento released Community Edition version 220.127.116.11. As the release notes say, what's new in this version is the security patch bundle SUPEE-6788. If you want to know what these patches do, here is a comprehensive article by Piotr Kaminski.
An important warning is that, SUPEE-6788 breaks backward compatibility, and can impact extensions and customizations. For instance, because of the changes in admin routing, extensions / customizations can become inaccessible from the admin panel.
To prevent this from happening, "Admin routing compatibility mode for extensions" is currently switched on by default in Magento 18.104.22.168.
If you turn it off, you will be fully protected from potential security threats, but you won't be able to access any extensions or customizations. Hence, we offer...
A temporary workaround
We are going to update our extensions as soon as possible to make them work with SUPEE-6788. But while you wait for the update(s), you can do the following:
- Go to System > Configuration > Admin > Security.
- Make sure "Admin routing compatibility mode for extensions" is on.
- Leave it on while you are working with the extension.
- Switch it off when you are done working with the extension for SUPEE-6788 to become fully enabled.
If you have any questions about this, please contact our Support Team.