I have just upgraded to the latest version of WordPress. Usually this is a simple procedure, but this time something went wrong – attempting to view the blog threw up a blank page!
Luckily I could still get to the admin pages, so I knew my database was still OK (of course I hadn’t bothered with a backup, so I was worried for a minute.) A couple of other people had the same problem on the WordPress forums, but no solution was forthcoming there.
It turns out that part of the upgrade process had overwritten my index.php file with an almost empty file that contained only comments. Whatever caused this problem (db upgrade? Who knows?), it went away when I copied the file afresh. I am starting to see why most people use a dedicated blog hosting service…
I think everything is working now – let me know if you see anything weird.