You can now upgrade to Wordpress 2.9

Good News! Wordpress 2.9 “Carmen” is now available. The new release has new cool features like:

1. Global undo/”trash” feature
2. Built-in image editor
3. Batch plugin update and compatibility checking
4. Easier video embeds

And here are also some of the improvements:

• support for canonical urls
• upgraded the TinyMCE WYSIWYG editor and Simplepie
• automatic database optimization support
• sidebar descriptions
• improved Press This bookmarklet
• and a lot more

Read the official release post here.