I just got done uploading the new 2.3.1 files via FTP per the WP documentation. I followed every step precisely. After uploading, I went to the wp-admin/upgrade.php URL and I get this message:
No Upgrade Required
Your WordPress database is already up-to-date!
So, I mosey on over and login to the dashboard and I see the A new version of WordPress is available! Please update now. message waiting for me. I'm so confused.....I think it's beer:30.