It may happen that at some point of our testing we break savegame compatibility, or do something which affects a specific engine deeply. In that case, you could be asked to restart the game you're currently playing from the beginning. You will be explicitly told to do so, so don't worry if we say nothing in this aspect.
Please, report about your completion
either on firstname.lastname@example.org, on our forums or talk to some developer ( an op) at #scummvm on irc.freenode.net. If you encountered some problem, provide the bug report number as well.
Thanks for your help.