ACCESS is no longer supported in upsd.conf. Use ACCEPT and REJECT. Old way:
ACCESS grant all adminbox ACCESS grant all webserver ACCESS deny all all
New way:
ACCEPT adminbox ACCEPT webserver REJECT all
Note that ACCEPT and REJECT can take multiple arguments, so this will also work:
ACCEPT adminbox webserver REJECT all
The newapc driver has been renamed to apcsmart. If you previously used newapc, make sure you delete the old binary and fix your ups.conf. Otherwise, you may run the old driver from 1.4.
For information before this point, start with version 2.4.1 and work back.