I feel it’s really close to the final release now since WordPress 2.7 RC2 is just open to public.
If you have installed RC1,you could use the built-in core updater (Tools > Upgrade) to download and install RC2 for you.Or you have to download the files here and install by yourself.
Matt said this version had fixed most known issues and being pretty much exactly as the final.
Count down for the next!