In my ongoing research, I intend to map transformations. That implies that, based on the ESRI basemap from Bing imagery, I draw certain features (in different layers) as they are today and as they are (meaning will be) in two years time.
I am concerned that Esri or Bing, whoever it is, will update the imagery and I will loose the starting moment of transformation (the present time).
In other words I would need to avoid my basemap from updating. I haven´t seen it happen yet, but I suppose it will update.
Or does it freeze at the date that I added it to my .mxd?
I am trying to avoid downloading the imagery and creating the tiles.