The last offical binary was posted with this discription:
> A new binary has been posted. This contains GDC master up to Nov. 28th.
>
> There's one annoyingly significant bug that I am aware of regarding
exceptions.
>
> Any uncaught exceptions will result in an infinite loop eventually
dieing due to stack overflow. However, this is only a minor annoyance >
and something to keep in mind when using GDB.
>
> Installation instructions:
>
> 1. Download and install TDM 4.6.1 MinGW64( To a dedicated directory
for GDC )
> 2. Extract the downloaded archive into the base of the newly
installed TDM install.
>
> If you've done this before, you can just do step 2.
>
> MinGW64 installer
> http://tdm-gcc.tdragon.net/
>
> You'll need to pull it from the archives.
http://sourceforge.net/projects/tdm-gcc/files/TDM-GCC%20Installer/Previous/1.1006.0/
>
> GDC binary
>
https://bitbucket.org/goshawk/gdc/downloads/gcc-4.6.1-tdm64-1-gdc-20130108-D2.060.7z
>
> Please post all issues in D.gnu or on GDC's bugzilla at
http://gdcproject.org/bugzilla/