Moving a React Native app from CodePush to react-native-update: step-by-step guide

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App Center was retired on March 31, 2025, and the react-native-code-push repository is now archived, so apps still calling codePush.sync() no longer receive updates. This guide, written by a maintainer of react-native-update and its hosted service Cresc, walks teams that have already chosen to leave CodePush through the migration. It offers a cheat sheet mapping CodePush concepts such as deployments, rollouts, and rollbacks to their react-native-update equivalents. The main conceptual difference is that published versions have no effect until they are bound to native versions, with testing done beforehand via QR codes. The steps cover swapping packages, removing old configuration from iOS and Android, and updating the native bundle-URL hooks.

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