Maybe it's just my problem (sorry, I didn't read all the things before and can not be sure, whether the "problem" was already listed somewhere):
If I push the ENTER key, there is always a empty line between the lines. I don't get this away.
Then: wasn't it possible before the update to see the text (I've written so far) either the source text (what I prefer) or as "wysiwyg". I don't find this button anymore.
Last: "My activity". I'm able to check, where I posted some words. But if there is any new post, it is not on the top of the listing. For example: the "Sleeperball". I posted something on July, 16th. In the meantime there are another 11 posts. Just today some minutes ago the latest. But the topic is still in "the middle field" on the "My activity"-list. No hint, that there are new posts. Before the update, the thread would have been on the top of the list. This was pretty cool and made it easier to check, what's new in topics, I'm interested in. And: you were able to jump to the first unread post after my last visit. Hope you understand what I mean.
Try to insert a picture.
Worked