SKILLCAD runs with Cadence Virtuoso Plarform, supporting IC5, IC6, IC12 and IC18.
As long as Cadence Virtuoso runs fine in your environment, SKILLCAD will also run fine.
SKILLCAD will maintain the compatibility to new Cadence releases.
As for the supported computing platforms, please refer to Cadence supported computing platforms
SKILLCAD license is FlexLM license, supporting Linux and Solaris license servers.