wondering what i need to do if i make changes? says i need to up the version # if making any changes. assuming i make the changes, do i just click 'save' and it's all good?

You should do the following:

1. Copy the board to a new version
2. Update the new version
3. Promote the new version to Live

You should be able to do the above without going through the review process again.

All new games will be started on the new board version.