First update from wordpress since the 2.5 release. According to there blog it resolves some security issues, and over 70 bug fixes. See for yourself. I upgraded manually and painlessly. So do the right thing and upgrade as soon as you can. 



Hey I really like the new wordpress, it"s great fun, nice backend!
WordPress 2.5 should be available very soon. Nice surprise to see Jeffery Zeldman and happy cogs involvement in the process.
Fantastic plug-in NextGEN Gallery!! I have been installing and testing this plug-in, I am very impressed. It's taken a few years to get to this standard of interface, after a long time searching for the right tools I now have great enthusiasm  for future projects. I have installed many Gallery2's ...