Ooooohhhhhhhhhhhh How did the site ever know the last post you had read?
It was a function on the mobile platform (what you see on your phone) but it didn't used to work for laptop/desktop computer display. On my phone the forum kept track of the last post you read, or rather the last post on the page you looked at last time. When you looked at that thread next time you would be automatically deposited at the next post right after the one you read last time. It was very convenient.
Now it will probably be a function on mobile AND desktop displays, and you will all know the convenience of last-read tracking.
One thing I can't get used to is the font that makes small i look like capital I. Same with j. I keep having to check and make sure I didn't accidentally capitalize letters that should be lowercase.