dmd 2.064.2

[Jesse Phillips]

On Thursday, 7 November 2013 at 01:12:14 UTC, Jonathan M Davis 
wrote:
> I had assumed that there was a 2.063.1 prior to 2.063.2 but 
> clearly wasn't
> paying enough attention.
>
> - Jonathan M Davis

Found the explanation:

http://lists.puremagic.com/pipermail/dmd-internals/2013-June/006569.html

The v2.063 was an aborted 'release'. 2.063.1 is what was 
released. (The compiler
& libraries are unchanged, what happened was the documentation 
was fixed.)