Ubuntu 12.04 Beta 1 release is now a week away and the archive is now in hard freeze to prepare for it.
During the freeze, all uploads to main must be approved by a member of the release team, so if you have fixes which are important to get in, please get in touch as soon as possible (and preferably, get your packages uploaded in parallel!).
Uploads to unseeded universe require a manual push through the queue, but are not subject to release management approval.
An issue has been noticed due to interaction between a recent libc upgrade and the nvidia graphics driver. If you have nvidia hardware, please avoid upgrading until this has been resolved. Investigation is
ongoing.
Details will be found and tracked in:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/929384
12.04 (Precise Pangolin) Alpha 2 is now available for those developers and testers interested in helping find and fix bugs before we beta.
More details can be found at: https://wiki.ubuntu.com/PrecisePangolin/TechnicalOverview/Alpha2