DMD v2.066.0-b6 binaries are available for testing:

	http://wiki.dlang.org/Beta_Testing

Note that Linux installers are not yet available due to https://issues.dlang.org/show_bug.cgi?id=13210.

On Sunday, 27 July 2014 at 12:22:59 UTC, Andrew Edwards wrote:
> DMD v2.066.0-b6 binaries are available for testing:
>
> 	http://wiki.dlang.org/Beta_Testing
>
> Note that Linux installers are not yet available due to https://issues.dlang.org/show_bug.cgi?id=13210.

The Windows installer is putting the files an extra folder deep
(i.e. C:\D\dmd.v2.066.0-b6.windows instead of C:\D).

https://github.com/D-Programming-Language/installer/pull/103
should fix it.