The GCC 7 mainline code-base hit the important milestone today of having zero P1 regressions — issues of the highest priority — and as such they branched the GCC7 code-base and GCC 7.1 RC1 is then being announced later this week as they prepare for this first stable release of GCC 7…

Source: Phoronix – GCC 7 Has Been Branched, GCC 8.0 Now On Master