v5.0.0

🎉🎉🎉 Zustand v5 🐻🐻🐻

TL;DR

• No new features
• Drop many old things
• Migration from v4 should be smooth.

Changes in v5

• Drop default exports
• Drop deprecated features
• Make React 18 the minimum required version
• Make use-sync-external-store a peer dependency (required for createWithEqualityFn and useStoreWithEqualityFn in zustand/traditional)
• Make TypeScript 4.5 the minimum required version
• Drop UMD/SystemJS support
• Organize entry points in the package.json
• Drop ES5 support
• Stricter types when setState's replace flag is set
• Persist middleware behavioral change
• Other small improvements (technically breaking changes)

Migration Guide

Read the migration guide carefully:
https://github.com/pmndrs/zustand/blob/main/docs/migrations/migrating-to-v5.md

Frequently Reported Issue

During the RC period, some users encountered the following infinite loop error:

Uncaught Error: Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.

This case was already a non-ideal behavior in v4 but appears more explicitly as an error in v5. While there are several ways to resolve this, using useShallow often fixes the problem.

What's Changed

• v5 by @dai-shi in #2138
• Fix Immer type inference for setState by @chrisvander in #2696

New Contributors

• @abernier made their first contribution in #2674
• @tthallos made their first contribution in #2501
• @sagiereder made their first contribution in #2673
• @melutovich made their first contribution in #2692
• @rgksugan made their first contribution in #2695
• @Anuovec made their first contribution in #2708
• @EthanRBrown made their first contribution in #2717
• @mym0404 made their first contribution in #2730
• @87xie made their first contribution in #2745
• @f312213213 made their first contribution in #2761
• @DanThemes made their first contribution in #2764
• @chaficnajjar made their first contribution in #2770
• @goosewobbler made their first contribution in #2781
• @Amyssyko made their first contribution in #2784
• @MartinGamesCZ made their first contribution in #2785

Full Changelog: v4.5.5...v5.0.0