It's time for the site's annual disaster recovery test; that's where I rebuild the site from scratch based on backups and confirm the procedure works as expected. The only upgrade will be in boring techie stuff like the database version and whatnot -- nothing operationally as the user level will change. It's my hope, however unlikely, that this refresh will fix the ongoing Cloudflare 520 errors.

The site will be read-only tomorrow for an hour or so while I copy over the latest content from the "old" site onto the "new" one.

The upgrade is complete. Please let me know about any unexpected behavior; if you see Cloudflare 520 errors, please reply to this thread.

UPDATED to add - Here's how to collect relevant data from Troubleshooting Cloudflare 5XX errors, with modifications:

If 520 errors continue after contacting your hosting provider or site administrator, provide the following information to Cloudflare Support:

• Full URL(s) of the resource requested when the error occurred
• Cloudflare cf-ray from the 520 error message
• Output from /cdn-cgi/trace
• Two HAR files: one with Cloudflare enabled on your website, and the other with Cloudflare temporarily disabled.

The last one about HAR files is extra credit; it captures what's shown in the browser.

I applied a small upgrade (phpBB 3.3.4 to 3.3.5); everything seems OK... except youtube/vimeo embeds are no longer working. I'll look into it. In the meantime, if you see any other unexpected behaviors, please let me know.

It's that time of year again! I've updated the servers. Please let me know if you see any unexpected changes.