Last **2 weeks** we were busy migrating our database management from [Room](https://medium.com/r/?url=https%3A%2F%2Fdeveloper.android.com%2Ftraining%2Fdata-storage%2Froom) to [SQLDelight](https://github.com/cashapp/sqldelight). It's the first step of the migration to **Kotlin Multiplatform**, which will allow us to deliver more consistent features on iOS / Android and deliver them faster.↵
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Version `1.4.6` has been published today's morning, but it contained a **tricky bug** related to wrong column names. Unfortunately, **preliminary testing** didn't revealed it, so we've seen it only when started to see some new crashes coming into Firebase Crashlytics.↵
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Version `1.4.7` with a hotfix has been published just a few minutes ago. Everything should now **work smoothy** for all users who experienced crashes after updating to `1.4.6` and for all users who will update to `1.4.7` directly. ↵
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In contrast, all first-time users who installed `1.4.6` without having **previous version** will have crashes after updating to `1.4.7`. This is caused by a **wrong database scheme** used in `1.4.6`, which can't be fixed. So, please, delete your current app version (`1.4.6`) and reinstall the app from [Google Play](https://play.google.com/store/apps/details?id=com.bogdan.codeforceswatcher).↵
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We are really sorry about these crashes. We will implement processes to prevent them from happening in the future.↵
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As usually thanks [user:BOGDAN_,2020-03-17] for development efforts and helping to quickly resolve the issue.
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Version `1.4.6` has been published today's morning, but it contained a **tricky bug** related to wrong column names. Unfortunately, **preliminary testing** didn't revealed it, so we've seen it only when started to see some new crashes coming into Firebase Crashlytics.↵
↵
Version `1.4.7` with a hotfix has been published just a few minutes ago. Everything should now **work smoothy** for all users who experienced crashes after updating to `1.4.6` and for all users who will update to `1.4.7` directly. ↵
↵
In contrast, all first-time users who installed `1.4.6` without having **previous version** will have crashes after updating to `1.4.7`. This is caused by a **wrong database scheme** used in `1.4.6`, which can't be fixed. So, please, delete your current app version (`1.4.6`) and reinstall the app from [Google Play](https://play.google.com/store/apps/details?id=com.bogdan.codeforceswatcher).↵
↵
We are really sorry about these crashes. We will implement processes to prevent them from happening in the future.↵
↵
As usually thanks [user:BOGDAN_,2020-03-17] for development efforts and helping to quickly resolve the issue.
