The new releases from Canonical (screenshots above are from DistroWatch on Friday) bring little more than UEFI-related changes that accommodate Microsoft control of hardware. Should Ubuntu users require permission from Microsoft to merely run on hardware that Microsoft does not own? As one article put it:
The Ubuntu developers at Canonical have released the second support release for Ubuntu 12.04 LTS "Precise Pangolin". The update adds the ability to boot the Long Term Support (LTS) version on systems that are using UEFI firmware and have Secure Boot enabled. This means that there are now two versions of Ubuntu, 12.04 LTS and 12.10, that can be booted while using the protection mechanism.