If you mean does updated areas (like mountains with ice caves) not update if you've explored/rendered those areas on the map, then that's really not ever gonna happen.

Most people thus understand that if you have concerns about that you can:

1. Not get even remotely close to those areas on a map (like mistlands when it releases).

2. Start a new seed map when an update happens (like many do) and consider it an exploration map or boss fight map(if applicable) etc.

3. Use the exact same seed as you are using now but just with a different name(you can do this many times) and following point 2 from there.

4. Use modded content to sort out the issue but with risk of loss(ie if you built over such a spot as an icecave was you may lose it.)

5. Wait to play the game when content is completely done and finished. Since devs though have said for the time being that they've plans for more content and potentially free dlcs in the future, that's probably not going to happen, you may just want to try points 1-4 if you actually want to play.

6. File corruptions tend to not happen much for now and if you encounter it, just report it to the devs so they can help ensure its not something on their end and fix it if it is.

But even if it did, using admin commands you can recoup losses on a new save in a very short amount of time. Also it helps to limit fear of corruptions by limiting use of mods(or not at all).