What are superseded patches?

If a vendor releases a patch that replaces an earlier patch, the new patch is called a superseding patch. The patch it replaces is referred to as the superseded patch.

Sophos recommends you install the superseding patch to keep your computers up-to-date.

Example: If you search for virusX and see that the fix for the virus is available in patch P01, which is superseded by patch P02, Sophos recommends you install P02.