Version 4.79 released.

Open older version (or wait a bit if running) and press "Update now" when asked about the new update.

v.4.79

• Added new option in "WEBSITES" -> "Other settings" -> "Search before creating new thread". With actions: "Skip if any results found" or "Reply to first search result". For types: xenForo, vBulletin 3.x / 4.x / phpBB 3.x.
• Fixed hosts surrounding with needed tag when message had more than 100 links of one host.
• Fixed few posting problems.
• Other small improvements and fixes.

For previous versions changelog: click here

Hey,
How to change back to black theme?

EDIT:
Found it sorry to bother

Under Config > Other and Theme.