In this release they've added a secret key.

Delete wp-admin, upload the new wp-admin.
Put up a blank index.html file into the root (to prevent any random visitor walking in on your upgrade).
Delete all the root files associated with WP besides the wp-config.php file
Delete the wp-includes folder
Upload new wp-includes folder
Upload the new root files
Go to your wp-admin/upgrade.php address
If it's all okay, delete index.html

However waiting is a good idea. There's only been bug testing for less than 2 weeks so give it another week or so to see how things pan out, just in case. And feel free to give me a shout if you get stuck

Lee, most of the plugins should continue to work okay as apparently there haven't been database changes as such, just additions. Mine appear to work fine although I've yet to test a couple of client ones. I'll be installing it locally and checking everything over first before hitting a live site with it though

I think the main let down is the new admin, but I'm going to start hunting out a decent admin theme, hopefully getting the look back to how it was in part. Especially as the new look will freak some clients out!