This page contains some 1.9.0 related datamining updates. I probably won’t be spending too much time on this, so don’t expect too many updates.
Diff from 1.8.0: https://pastebin.com/q9wQcU5w
The 3000 bell check for friendship gifts now applies to mailed return gifts as well (NNPC_Select_Sell_Gift.evfl). This means that giving a villager a fruit from a stack while having a full inventory will result in a level 1-2 friendship gift with no chance of a framed photo.
1.9.0 added unused code in Demo_PublicAnnouncement_40_CmnNoNews.evfl for daily announcements, referencing dialogue strings that are not in 1.9.0, which makes Isabelle say something based on the current daily visitor, if there is one, rather than saying there is no news today.