AMD GPU (GCN) The standard C++ library (libstdc++) is now supported and enabled. I've really got to give GCC's GPU offloading a try sometime. Does anyone have any experience with the performance of this, vs reasonably well written GPU code by hand? I might do some tests and write them up to see if its actually workable for high performance code Experimental support for supporting generic devices has been added; specifying gfx9-generic, gfx10-3-generic, or gfx11-generic to -march= will generate code that can run on all devices of a series. Additionally, the following specific devices are now have experimental support, all of which are compatible with a listed generic: gfx902, gfx904, gfx909, gfx1031, gfx1032, gfx1033, gfx1034, gfx1035, gfx1101, gfx1102, gfx1150, and gfx1151. To use any of the listed new devices including the generic ones, GCC has to be configured to build the runtime library for the device. Note that generic support requires ROCm 6.4.0 (or newer). For details, consult GCC's installation notes. More on reddit.com

According to https://docs.oracle.com/en/operating-systems/oracle-linux/product-lifecycle/OL-PRODUCT-LIFECYCLE.pdf , Table 2-6, GCC-Toolset 15 is available in applica... More on forums.oracle.com

I wrote an application that I uses c++20 features that needs to run on Rocky 8, so I installed the gcc-toolset-15 package. I do this on a development machine (this is a virtual machine but that’s not important for this discussion). I’ve deployed this application to several machines running ... More on forums.rockylinux.org

The new default is -std=gnu23, which means C23's breaking changes are now the default. In my experience so far the most disruptive has been old-style prototypes, particularly empty parameter lists. This: void f(); Now means: void f(void); Instead of "unspecified number of arguments." Projects depending on the old behavior include GDB, GMP, GNU Make, and Vim. These require special consideration when building with GCC 15. More on reddit.com