Mobile apps

Upgrading an older React Native app

The framework is usually the easy part. An old React Native app is hard to upgrade because of its libraries and of the architecture change completed in 0.82. Sort out those two things first, and the version number follows.

By itmarkerz Technologies. Updated 30 October 2026.

Where things stand

React Native’s release policy maintains the latest 3 minor series, and new versions arrive about every two months. The milestones below, taken from the React Native blog, are the ones that shape an upgrade plan.

React Native releases that matter most for an upgrade plan
VersionReleasedWhat changed
0.76October 2024New Architecture on by default
0.80June 2025Legacy Architecture frozen; warnings for APIs that will stop working
0.82October 2025“The first React Native that runs entirely on the New Architecture”
0.84February 2026Hermes V1 by default; further removal of legacy components
0.87August 2026Strict TypeScript API by default
0.88October 2026Latest release when we checked

The order we would work in

  1. Make a list of native dependencies. For each one, note its last release, and whether it supports the New Architecture. An abandoned library with native code is the most likely thing to block you. Decide whether to replace, fork or remove it.
  2. Add a safety net. Write down the flows that earn money or would generate complaints. Automate what you can, and otherwise keep a written test script to run on real devices at every stage.
  3. Bring your build tools up. Node, Xcode, Android Gradle Plugin and the target SDK levels the stores now require are often the first failures, and they have nothing to do with your code.
  4. Move in stages. Go through the milestones above rather than directly to the latest. Use the Upgrade Helper, which shows all file changes between two versions. On Expo, move one SDK at a time.
  5. Handle the architecture step on its own. Do this at a version where the old architecture can still be switched back, if yours allows it, so that you can compare behaviour. Check native modules and third-party UI components most carefully.
  6. Release to a small group. Use TestFlight and a Play staged rollout, and watch crash reports before going wider.

What tends to take the time

Where time goes in a React Native upgrade, and what to look for
AreaWhy it is slowFind out early by
Abandoned native librariesThey may need replacing, with screens changed to suitListing them with their last release date
Custom native modulesThey may need rewriting for the New ArchitectureReading your android and ios folders for custom code
Patched packagesLocal patches may not apply any moreChecking for patch-package, and asking why each exists
Navigation or animation librariesMajor versions may change their APIs across the appSearching how many screens use them
Store requirementsNew target levels and privacy declarationsReading the current store requirements
No testsEach stage needs manual checksTiming one full manual pass

Don’t forget the API and the users

People on older builds will keep calling your API, so don’t remove what they use on the day you release. If your app has no minimum-version check, add one in this upgrade, because it makes future changes much safer. We explain this in one Laravel API for web and mobile. Also consider whether this is the moment to adopt Expo’s generated native projects, since doing so will make later upgrades easier.

Afterwards, schedule upgrades as a routine. With a release about every two months and only three series maintained, falling behind happens quickly, and small regular steps cost much less than a project like this one.

React Native work in our portfolio

  • UK garage-booking SaaS: car owners book, pay, receive invoices and reminders from their phone; garages manage services and slots. Laravel API, Next.js web app, React Native iOS/Android apps. About one year.

    Sector
    Automotive
    Region
    UK
    Stack
    Laravel, Next.js, React Native
    Engagement
    Product build, about one year

Questions

Which React Native versions are supported?

React Native maintains the latest 3 minor series. The current release checked on 30 October 2026 is 0.88, with releases about every two months. So a version from a year ago is already out of support. Check the releases page, because this changes quickly.

Can we skip versions?

The Upgrade Helper will show a diff between any two versions, so a single jump is possible on a small app. On an app that is far behind, we would rather go in stages around the big changes, because a failure then has fewer possible causes. Expo's advice is one SDK version at a time.

Should we rewrite instead?

Sometimes. If the app is small, untested and depends on many abandoned libraries, a rebuild could be cheaper, and your API doesn't have to change. Get a list of libraries and their status before you decide.

More on mobile apps

Is your app stuck on an old version?

Send us your package.json and tell us which version you are on. We will tell you which libraries are likely to be the problem.

We reply within one business day (IST).