Question Edward Malin · Jan 3, 2018 Freeze Query Plans on Upgrade from 2015.2 to 2017.1.2 or 2017.2.1 Will an upgrade from 2015.2 to 2017.1.2 or higher freeze the query plans from 2015.2? Is there some minimum source version where this will work? #Caché #SQL 0 3 0 425