Yes correct, I needed to do a re-login (e-mail/password) as well. I assumed it was part of this maintenance cycle, so I didn't mentioned it. I'll wait for it to be confirmed - or not - by MR staff then.
I'm not sure if the cause is the maintenance mentioned in this thread or something else, but I've been able to quickly navigate (paid acct.) the forum with an iPad Mini 1 in Safari without crashing. I haven't been able to do that for a year.