MyBB Hacks

Hi,

I just want to know what will happen to my new forum (thread) if I merge all thread from old forum?


What I need to do before merge threads?

Depends what you are merging exactly.
Merging two threads together?  The thread field data of the one being deleted will be lost.
Moving threads from one forum to another?  Thread fields will be retained.
Merging forums with the MyBB Merge System?  Thread field data won't be copied across.