TanStack Query v5 - Complete Guide

TanStack Query v5 (October 2023) is the async state manager for this project. It requires React 18+, features first-class Suspense support, improved TypeScript inference, and a 20% smaller bundle. This section covers production-ready patterns based on official documentation and community best practices.

Breaking Changes in v5

Key updates you need to know:

1. Single Object Signature: All hooks now accept one configuration object:

   // ✅ v5 - single object
   useQuery({ queryKey, queryFn, ...options })
   
   // ❌ v4 - multiple overloads (deprecated)
   useQuery(queryKey, queryFn, options)