use of hashtables by the different versions of an engine

[mercury]

Is is possible that the version 2 of an engine use the hashtables of the version 1 previously loaded in the GUI? The version 2 could find faster the best move by using the hashtables of the version 1 and the false conclusion would be that engine 2 is better/faster than 1.

[Aleks Peshkov]

It is not possible for reasons of security between independent processes even if you run to identical versions of engine.