Yes, there might be major API changes between each release. This can put a toll on your projects because at each release you may need a migration ranging from slow hustle to complete project traversal. However, I believe that learning on the road is rewarding. All API changes happen for a reason and knowing the history behind them will be helpful in the future when Compose gets to the pre-release stage. If you have time to try it out, I'd definitely recommend doing so.