How can we manage that?
In the Netherlands, we have now the newest Goverment Aerial Ortho Images, 2016 and 2017 is coming in a most recent actual version.
In JOSM, it is in default entries.
In all editors:
In a country, when zooming in there must be a warning, that there is a newer aerial available and maybe set as default for that country.
Now, retags to older situations, this must be avoided. To get a better map quality.
What do you think?
The setup of a editors, largely determine the quality of the mapping.
I like to hear from other country OSM communities, what is there, the best aerial map in a part of their country.