Build and distribution
Release risk management
The App Store has no rollback. What would you build into the release process to limit the damage when a new version ships with a critical bug?
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Build and distributionShort answerAdvanced
A shipped app has a critical bug and you can't wait for App Store review. Why did Apple b…
#feature-flag
Build and distributionShort answerAdvanced
You're adding A/B experiments to the app. Where and how would you assign users? Describe …
#feature-flag
ArchitectureShort answerAdvanced
You need to improve the structure of a massive ViewController in a live UIKit order featu…
#feature-flag
Performance and debuggingShort answerExpert
You have a production bug that affects 0.1% of users and never reproduces in development.…
#feature-flag