I agree! 👍 When I added a new model without changing the existing one, everything went smoothly. However, issues arise when modifying the existing model. In such cases, migration becomes necessary.

Thank you so much for the insightful response 🙏 Thanks to what you mentioned, I was able to gain a deeper understanding of the material I'm studying. If it's okay with you, could you show me a simple example code that uses both Singleton and Dependency Injection together? I can't quite grasp the concept, so I wanted to ask. I hope you have a wonderful day/night 🌈✨

Hello 😊 My new app is also experiencing the same issue. Since I submitted it last Friday (January 23, 2026), it has remained in "Waiting for Review" status. In the past, I don’t recall it ever staying in that state for this long. I was wondering if perhaps there is currently a backlog in reviewing new apps. 🙏 I hope you have a wonderful day 🌈 Thank you so much!