After slightly more than a year since last major GCC release, we are proud to announce new major GCC release, 6.1. GCC 6.1 is a major release containing substantial new functionality not available in GCC 5.x or previous GCC releases. The C++ frontend now defaults to C++14 standard instead of C++98 it has been defaulting to previously, for compiling older C++ code that might require either explicitly compiling with selected older C++ standards, or might require some code adjustment, see http://gcc.gnu.org/gcc-6/porting_to.html for details. The experimental C++17 support has been enhanced in this release. This releases features various improvements in the emitted diagnostics, including improved locations, location ranges, suggestions for misspelled identifiers, option names etc., fix-it hints and a couple of new warnings have been added. The OpenMP 4.5 specification is fully supported in this new release, the compiler can be configured for OpenMP offloading to Intel XeonPhi Knights Landing and AMD HSAIL. The OpenACC 2.0a specification support has been much improved, with offloading to NVidia PTX. The optimizers have been improved, with improvements appearing in all of intra-procedural optimizations, inter-procedural optimizations, link time optimizations and various target backends. See https://gcc.gnu.org/gcc-6/changes.html for more information about changes in GCC 6.1. This release is available from the FTP servers listed here: http://www.gnu.org/order/ftp.html The release is in gcc/gcc-6.1.0/ subdirectory. If you encounter difficulties using GCC 6.1, please do not contact me directly. Instead, please visit http://gcc.gnu.org for information about getting help. Driving a leading free software project such as GNU Compiler Collection would not be possible without support from its many contributors. Not to only mention its developers but especially its regular testers and users which contribute to its high quality. The list of individuals is too large to thank individually!