Update: Just in case I did a regular upgrade to 2.7 again. I have access to the admin panel now, but it says “You are using WordPress 2.7” and next to it “Update to 2.7” and I have the cute bar that tells me “WordPress 2.7 is available! Please update now.”
Is that a good old-fashioned bug or am I running a secret 2.6.9.9 version?
