Roland have announced an updated SH-101 Plug-out to make it compatible with the System-8, so it can now plug-out to the 8 as well as the System-1. The firmware for the System-1 has also been updated so that it works with the updated SH-101. The updated Plug-out also allows the System-8 to use the librarian contained in the Plug-out, which is nice:-)

Based on this upate, we can assume further updates will be made for the System-1 so that other Plug-out updates will work with it as well.