Vivado 2015.2 released today.
Today Xilinx released an update to its Vivado. New version number is 2015.2 and biggest news to me is that it now supports Ubuntu Linux 14.04 TLS(64-bit). It also have number of bugs fixed, but not much of new features - just a support for a few new devices and added CDC report.
Also, just like with 2015.1 where is no Petalinux update. At least yet.