Paul Murdaugh (DualTop, SuperValidate, Landmark Disk, HitchHikers Guide' to GEOS V2022,..) released this updated version of the Gateway update for GEOS 64 & 128 users after fixing some bugs and upgrading the device drivers.
Included in the zip is a .d81 for GateWay 64 and one for GateWay 128, a V2.5 manual, and a .d64 containing a GateWay Developers Pack from CMD).