I get a popup/notification once a month or so, when on wifi. It just asks if I want an update. There are settings to automatically update offline maps and one to control the automatic downloading of offline maps.
Seems pretty reasonable to me, after all roads do change over time.
My main motivation is to make nav less bandwidth intensive (I pay per GB with Google FI) and to ensure I have maps even if I don't have a good data connection.
It's reasonable to warn and suggest to update. It's not reasonable to not allow to use the old maps just because you don't update - but the Maps app enforces that.
It might have something to do with licensing. Either way, OsmAnd doesn't have that problem.
Seems pretty reasonable to me, after all roads do change over time.
My main motivation is to make nav less bandwidth intensive (I pay per GB with Google FI) and to ensure I have maps even if I don't have a good data connection.