immer

11.2.9 · 22 Oct 2026MIT89.4M / weekRepository Homepage npm Atom feed

Upgrading immer From 7.0.15 to 8.0.0

Same major only

1 release in betweenevery note read

Other targets from 7.0.15Clears its 3 advisories9.0.6 Latest11.2.9

7.0.15yours
8.0.0target

1
change to make: 0
advisories fixed: 1
new: 0
fixes

Before you upgrade

Tick each one off as you go

Always freeze by default, even in production mode. Use setAutoFreeze(process.env.NODE_ENV !== 'production') for the old behavior. See #687 for the rationale. Fixes #649, #681, #687
breaking8.0.0

Security

3 advisories still affect 8.0.0

Prototype Pollution in immercritical · GHSA-33f9-j839-rf8h
Prototype Pollution in immerhigh · GHSA-9qmh-276g-x5pj
Prototype Pollution in immerhigh · GHSA-c36v-fmgq-m8hx

Upgrading to 9.0.6 clears them.

Release by release

8.0.0
Migration needed17 Nov 20201 new
- breaking
  Always freeze by default, even in production mode. Use setAutoFreeze(process.env.NODE_ENV !== 'production') for the old behavior. See #687 for the rationale. Fixes #649, #681, #687
- new
  Always freeze by default

Upgrade to 8.0.0

npm install immer@8.0.0

What 8.0.0 needs

Reading 8.0.0's manifest…

Check against your package.json

Which of your other dependencies stand in the way of 8.0.0. Read once, not stored.

After upgrading

Run the type checker, the linter and the tests.
Build, and look for new deprecation warnings.
Update peer dependencies the new version asks for.
3 advisories still affect 8.0.0.