Latest updates
Google does not support / in group email addresses but doesn't give an error if you assign an address that contains a /.
The Directory API will accept such an address but the Group Settings API won't; this update maps / to %2F
so the Group Settings will accept the address.
Installation
If you are a first time Gam user:
If you are upgrading from standard Gam
If you are upgrading from GAMADV-X or GAMADV-XTD