Add @api stable annotations for ol.Feature
Add @api stable annotations for ol.geom.Geometry
Add @api stable annotations for ol.geom.GeometryCollection
Add @api stable annotations for ol.geom.LinearRing
Add @api stable annotations for ol.geom.LineString
Add @api stable annotations for ol.geom.MultiLineString
Add @api stable annotations for ol.geom.MultiPoint
Add @api stable annotations for ol.geom.MultiPolygon
Add @api stable annotations for ol.geom.Point
Add @api stable annotations for ol.geom.Polygon
Add @api stable annotations for ol.geom.SimpleGeometry
Remove the ol.geom.RawPoint type
Remove the ol.geom.RawLineString type
Remove the ol.geom.RawLinearRing type
Remove the ol.geom.RawPolygon type
Remove the ol.geom.RawMultiPoint type
Remove the ol.geom.RawMultiLineString type
Remove the ol.geom.RawMultiPolygon type
Mark map.beforeRender as unstable
Only document olx properties marked as part of the API

And mark all olx properties with @api.  The stability level will be used to determine what can change between minor releases.