# Next.js 16.3 brings client-side caching to the App Router

DevFeed: [Next.js 16.3 brings client-side caching to the App Router](<https://devfeed.tech/articles/next-js-16-3-brings-client-side-caching-to-the-app-router-16498.md>)

Original publisher: [Read original article](<https://appwrite.io/blog/post/nextjs-163-brings-client-side-caching-to-the-app-router>)

Author: Aditya Oberai

Published: 2026-08-05T00:00:00Z

Content type: article

Language: en

Sources: [Appwrite Blog](<https://devfeed.tech/sources/appwrite-blog.md>)

Topics: [Next.js](<https://devfeed.tech/topics/next-js.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Server-side rendering](<https://devfeed.tech/topics/server-side-rendering.md>), [TypeScript](<https://devfeed.tech/topics/typescript.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [Vercel](<https://devfeed.tech/topics/vercel.md>)

Tags: [caching](<https://devfeed.tech/tags/caching.md>), [news](<https://devfeed.tech/tags/news.md>), [next-js](<https://devfeed.tech/tags/next-js.md>), [performance](<https://devfeed.tech/tags/performance.md>), [ssr](<https://devfeed.tech/tags/ssr.md>), [typescript](<https://devfeed.tech/tags/typescript.md>), [upgrade](<https://devfeed.tech/tags/upgrade.md>), [vercel](<https://devfeed.tech/tags/vercel.md>)

## AI overview

This article explains the Next.js 16.3 release, focusing on client-side caching and SPA-style navigation for the App Router through the opt-in Instant Navigations suite. It also covers performance changes including reduced development-server memory usage, cached builds, faster TypeScript checking, and increased request handling under load.

## Source excerpt

Next.js 16.3 lands with client-side caching, up to 90% less dev server memory, disk cached builds, and opt-in Instant Navigations. Here is how to upgrade.