My Web host dropped support for PHP 5.2 before I had a chance to upgrade to a version of Drupal that supports PHP 5.3. My site is now seriously broken, and more seems to break every day, though my Web host swears nothing else has changed. Starting today, people can't start new forum topics, but yesterday they could. Why??
I'm fairly desperate to find a way to upgrade to a version of Drupal that runs correctly with PHP 5.3, but the site is so severely damaged now that I don't know how to do it. I'm sure the upgrade script itself won't run correctly.