From id Software's Graeme Devine:
"We've decided to make the point release beta, but public,
because there's nothing like a few million beta testers! When running
servers using this release we highly suggest running them as non-pure
servers so that older clients can connect to them without problems.
Please read the enclosed FAQ for a detailed list of which bugs and
UI features we've addressed with this point release. If all goes
well we'll go with a final version of the point release very soon.
The Macintosh and Linux builds of the point release BETA will be
out hopefully today as well."