Originally Posted by
njcommodore
You should get an email. The upgrades process for gold beginning at T-3 days. Many people report, and I've experienced as well, that the upgrades process very close to the time of the flight at T-3, T-2, t-1 and T-3hrs. You can also log into your CO acct, view the reservation and see CU for the complimentary upgrade. Once you're within 2 days of the flight, you can start to track it on pda.continental.com . Look for upgrade standby list. At T-24hrs and you check in, you'll see your place on the list.
Check out this post for more info on EUAs
FYI, CU is for Y/B-ups. If you receive an EUA, the fare class will be R.