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Mingw-w64 is an advancement of the original mingw.org project, created to support the GCC compiler on Windows systems. It has forked it in 2007 in order to provide support for 64 bits and new APIs. It has since then gained widespread use and distribution.
The development and community are very active and welcoming with new contributors every month and simple installers.
You can also look at the full list of versions.
Mingw-w64 interacts a lot with other projects in order to help everyone move forward. Contributions have been going to and coming from these projects:
at_quick_exit is broken on UCRT subsystem
Seems that this is a bug in libgomp/gcc project as it incorrectly uses printf format attribute. There is already patch for it: https://github.com/msys2/MINGW-packages-dev/blob/master/mingw-w64-gcc-git/0020-libgomp-Don-t-hard-code-MS-printf-attributes.patch
Revert "dcomp.h: add some missing interfaces"
headers: Add GetHostNameW in winsock2.h
dcomp.h: add some missing interfaces
Latest Windows SDK headers and API support in the MinGW-W64 toolchain
most recent version of gcc
crt: Fix conversion of denormals from 64 bit doubles to 80 bit form
Change formatting of double precision floating-points in hexadecimal to match glibc.