How to coexist multiple versions of React Native in a project?

[nanatlantica]

Description

My project is currently using version 0.64.2, and I want to switch to version 0.72.5. However, since there are many pages, I cannot switch all at once and need to do it gradually. Therefore, I hope to create two different dynamic libraries for the different versions of React Native. Is this feasible? Or are there other solutions?

Steps to reproduce

My project is currently using version 0.64.2, and I want to switch to version 0.72.5. However, since there are many pages, I cannot switch all at once and need to do it gradually. Therefore, I hope to create two different dynamic libraries for the different versions of React Native. Is this feasible? Or are there other solutions?

React Native Version

0.72.5

Affected Platforms

Runtime - iOS

Output of npx react-native info

macOS : 15.0.1
iOS : 16.7.10

Stacktrace or Logs

null

Reproducer

https://github.com/nanatlantica/RNDynamic.git

Screenshots and Videos

No response

[react-native-bot]

⚠️

Unsupported Version of React Native

ℹ️

It looks like your issue or the example you provided uses an unsupported version of React Native. Due to the number of issues we receive, we're currently only accepting new issues against one of the supported versions. Please upgrade to latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If you cannot upgrade, please open your issue on StackOverflow to get further community support.

[react-native-bot]

⚠️

Unsupported Version of React Native

ℹ️

It looks like your issue or the example you provided uses an unsupported version of React Native. Due to the number of issues we receive, we're currently only accepting new issues against one of the supported versions. Please upgrade to latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If you cannot upgrade, please open your issue on StackOverflow to get further community support.

[react-native-bot]

⚠️	Issue is a Question
ℹ️	We are using GitHub issues exclusively to track bugs in React Native. GitHub may not be the ideal place to ask a question, but you can try asking over on Stack Overflow, or on Reactiflux.

[shubhamguptadream11]

@nanatlantica Instead of migrating to 0.72.5 which is currently an unsupported version. You can try migrating to latest 0.75.x.

[cortinico]

Is this feasible? Or are there other solutions?

This is not easily doable. Expo was doing so with Expo Go, but you'll have to vendor react native and is a huge work (i.e. you'll have to rename a lot of classes to like ReactActivity.kt -> ReactActivity64.kt and ReactActivity72.kt).

I don't think is worth the effort and our suggestion is just to spend the time to migrate to the latest version, also as @shubhamguptadream11 suggested.