Just removed the excluded Anspress urls from my caching plugin to see how Anspress 4 works with caching. Anspress 3 didn’t work at all with caching (page caching).
I see in v4 that individual Questions (and their answers) are cleared when something changes (editing, answering etc). So it seems to work just fine with page caching.
What doesn’t seem to work is the Anspress base page with Question listings. When a new Question is posted, that page is not updated (cleared so a new is created). This is not a major problem, still if it could be somehow fixed it would be great.
My caching plugin is Comet Cache lite, the only i trust.