May I ask why you remove the old patch notes? 24 hours is quite a small window to notice. I come back to this game randomly and have to guess if its updated.
It doesnt appear in my feed if deleted I guess, perhaps you could leave the lastest dev diary until the next update instead of 24 hours?
That way they wouldnt build up and the latest build would always show in the feed. Currently you dont appear in the feed at all other that the guide post.