2.7.1, the first 2.7 maintenance release, is now available.* 2.7.1 fixes 68 tickets.* You can automatically upgrade from 2.7 to 2.7.1 via the Tools->Upgrade menu, or you can download the package and upgrade manually. Consult the list of fixed tickets and the* full set of changes between 2.7 and 2.7.1 for details.

Source: wordpress.org