Staged Rollouts: Why 100% on Day One Is a Bad Idea
Play Console lets you roll out an update to a percentage of your existing users before going to 100%, and skipping this step is one of the most avoidable causes of mass negative reviews after a bad release.
The pattern: a regression that only affects a subset of devices or Android versions ships to everyone at once, generates a wave of 1-star reviews within hours, and by the time it's caught, the damage to your rating is already visible.
The fix
Fix: default to a 10-20% staged rollout for any release touching core functionality, and watch crash-free rate before expanding.
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