Steve – thanks for testing!
Donnacha – probably tomorrow or the day after. I would love if a few people volunteered to test this stuff so we could avoid the obscure bugs that meant 3 releases of the plugin last week. Especially people with “unusual” configurations. That’s the main reason for this post. The actual bug fix isn’t all that complex actually. The “cache rebuild” code is more experimental which is why there’s no option for it on the admin page.