Correct. The relay has to send an old event AND the app must have a newer version OR a delete event to send back.
These first days will probably be harder because there are so many outdated events out there, but as relays start to get up-to-date the additional use of resources should be minimum.
cool, thanks for the announce, I think it solved my mystery and i do think this is overall good for nostr. adjusted some things and apologize to everyone for any old events that i didnt think about the implications of before (on very old long running relays like nostr21.com that i transitioned to a paid model to combat spam).
drafts im still on the fence a bit tho, lol, soh many drafts, its king of events now (used to be likes). if theres any way to send slightly less of them, im sure the nostr net would appreciate. ðŸ«
