I had troubles logging in after the upgrade. I cleared caches and tried restarting the browser, tried from both login buttons, both let me enter the login and password, but after hitting "Login", just returned me back to the same page i was on, without actually logging in, without giving any errors.
Now for some reason i had bookmarked the site as an http:// without https and this was the cause for the login not to work. I don't know if its intentional or not, but it confused me as there was no errors.
I think http:// should forward the user to https:// by default anyway, there should be no reason to use http if https is available.
EDIT: Also noticed that https :/ipcamtalk.com (login does not work) is not the same as https :/www.ipcamtalk.com (login works)