The first release candidate for GCC 5.2 is available from ftp://gcc.gnu.org/pub/gcc/snapshots/5.2.0-RC-20150707
and shortly its mirrors. It has been generated from SVN revision 225500. I have sofar bootstrapped the release candidate on {i586,ia64,ppc,ppc64,x86_64,aarch64}-suse-linux-gnu. Please test the release candidate and report any issues to bugzilla. If all goes well I'd like to release GCC 5.2 at the middle of next week.