Warp and Small tile documentation missing
The help is now missing Filters->Map->Small tile and Filters->Map->Warp. They used to exist in the 2.8 help.
They were removed in b18262cd when some other filters were updated, but I don't see any mention of the removal, so it could be by mistake.
Looks like those pages should still be usable with some trivial changes, like changing Vector Mag
->Vector Magnitude
, and new images since the dialogs have had some small changes.
I'll take a look if this still is around when gimp#11075 (closed) is fixed, I can't get Warp working correctly at the moment.