If you have never tried the game, there is nothing to stop you from downloading it now.
The CG109b version already required many hours of play to unlock all the CGs.
I always make sure that the updates are compatible with the old saves (The update of the variables is done automatically when you load your game).
The next update will add about 15 new CGs to the 109 available in the current version.
The biggest disadvantages of not starting a new game when I release an update are :
- consistency of the story (there is often a progression for the CGs, when Lolita already has high stats, it can create an impression of backtracking).
- dead time to fill between new CGs (some CGs are only triggered on specific days, so you have to redo actions you've already seen between).
On the other hand, if you already have a game from an older version, I advise you to wait a bit until the new update comes out, to avoid experiencing the inconveniences (that I just described above) twice in a row...
As I feared, my beta tester and I discover a lot of mini bugs because of the big technical part of the update. I fix everything we find as we go along. But it's much more time consuming than debugging only a few new CGs like in the previous updates. Currently we have debugged the equivalent of 5 hours of game (we both started a new game, she plays in French and I in English).