From what I saw, they didn’t extend the expiration dates themselves, but they did give a bit of extra time to renew without having to start fresh.
For the renewal itself, some folks can do it online, but others might need to mail in their original documents or go in person if they don’t meet all the online criteria. And if you’re uploading ID online, using something like
ID Analyzer could be handy for checking your photo ID—it keeps things a bit more secure, especially with all the back-and-forth online.