Apple Releases iBooks 1.1.2 [No Change log]

Apple released iBooks 1.1.1 from about 4 days ago.
Now, a 1.1.2 update has just appeared in iTunes but the changelog is the same of the last version.

iBook 1.1.2:

Could it be that Apple didn’t want to actually push this update yet, or is it just an temporary error? Also, maybe this is just a bug fixes-related release and Apple forgot to mention it.

And the iBook 1.1.1 No changelog:

iBooks iTunes Link.