#migration

Progressive Core Data Migrations

There are very few certainties in app development, but one is that once your app is released it will change in unexpected ways. And no matter how flexible your architecture is inevitably one of those changes will be a breaking change. Perhaps the most important breaking changes involve the user's…

Step-by-step Core Data Migration

This post is now out-of-date, please instead see: "Progressive Core Data Migration". People really care about their possessions. Nowhere do you see this more than on public transport. It's not unusual to see bags occupying seats while people stand. As a Brit, we have developed a powerful non-verbal…