The production playbook for OTA updates

Expo's OTA update service, EAS Update, allows developers to deploy updates rapidly to users while maintaining control over the process through staged rollouts, monitoring, and rollback strategies. This approach enables developers to test updates in real-world conditions by initially limiting exposure to a small percentage of users, thereby observing how the update performs before wider distribution. Real-time monitoring via the EAS dashboard helps track update adoption, detect crashes, and evaluate trends, ensuring updates are stable before expanding rollout. Rollbacks and reverts are available for handling issues that arise, providing mechanisms to revert to previous states if problems occur. Additionally, updates can be optimized for bandwidth efficiency using features like Hermes bytecode diffing. Despite the potential challenges, EAS Update aims to streamline the update process, offering a robust framework for continuous app improvement while allowing developers to confidently introduce changes to their user base.

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