Possibly related to the new verified-users, unverified-users groups. If your forum had the require email confirmation setting on and you upgraded then registered-users no longer have posting privileges. This is done by the upgrade scripts. But if you reverted without doing a database restore then registered-users won't have the privileges back.
CSS Chats problem With Black Themes
I have problem with Chats CSS with Black themes,
I don't see the text on Chats windows :
On mouse Over
Can you help me with that ?
@downpw If you know how to use css, just change the text in the chat to white.
but add another class to make it the regular color while hovering, you may need to use !important
Resolved for me