How do you find out the date of collection for basemap imagery in Pro? Bonus: is there a way to do it via ArcGIS Online, too?
Tried Explore tool, looked through metadata and just can't seem to find it.
Try this for online: http://www.arcgis.com/home/item.html?id=c1c2090ed8594e0193194b750d0d5f83
Currently, no way to do this in Pro. It would be worth logging an enhancement or equivalency issue with technical support.
In AGOL, you simply add the imagery basemap as a new layer to your map (Search For Layers->"World imagery"). When you click the map, the infoWindow will tell you the acquisition date, source, etc of the imagery.
Retrieving data ...