Apple has released the second public beta version of OS X 10.11.1 for members of its Beta Software Program. Program members can download the update through the Mac App Store on a computer registered with the program.
This is expected to be the first major update to OS X El Capitan though what will be in the update when it launches is not clear. However, it does appear that some new emoji characters will make an appearance. El Capitan itself launched earlier this week.