Flutter Over-the-Air Updates: A Complete Technical Guide to Code Push

A critical bug ships to production. Users report crashes in your payment flow. Your team has a fix committed and tested within the hour, then you file for App Store review and wait. Twenty-four to forty-eight hours on a good day, longer over a weekend. By the time the fix reaches users, retention has already taken a hit and your app store ratings have moved. React Native teams sidestep this by swapping a JavaScript bundle. Flutter teams have historically had no equivalent option. This guide explains the architectural reason for that delta, how Shorebird's CodePush solves it at the runtime level, and how to get the full implementation running in your production pipeline. Why Flutter Can't Do What React Native Does Flutter compiles Dart code to native ARM machine code at build time using ahead-of-time (AOT) compilation . The output is a compiled snapshot baked directly into the app binary. At runtime, there's no interpreter between your Dart logic and the hardware. React Native works dif