4 spaces in a code block are now converted to a tab character which will lead to preservation of the indentation in code blocks. So 8 spaces of course are converted to 2 tabs etc. This is done in the parser for UBB codes so the original text isn't altered.
A bug with quoted strings without a closing " or with carriage returns in it has been fixed.
The formatting buttons in the message editor now work again in firefox. You can select text in the editor and click a button and the appropriate tag is surrounding the selection.