I just downloaded dmd 2.031 and it does not contain std.thread. Why not?

On Mon, Aug 24, 2009 at 12:19 PM, asdf<asdf@fdsa.asdf> wrote:
> I just downloaded dmd 2.031 and it does not contain std.thread. Why not?
>

Because several releases ago, std.thread was replaced by core.thread.

http://www.digitalmars.com/d/2.0/changelog.html#new2_020

For some reason the Phobos docs still refer to it as std.thread, but the documentation page itself says core.thread.