New login form
The little login form has been replaced with a separate page (removing ~5KB for each pageview) and a single 'Login' link in the menu on the left. This would be slower to use, but there is a new "Remember me" checkbox that will keep you logged in between visits¹.
'Logout' works as before, and the website will forget everything about you
Also, in the new form you can just start typing right away —no need to slowly move the mouse and click on the drop down. from the same browser, accepting cookies, etc.