# Next.js v15.5.26 — Release & Upgrade Intelligence
- **Product:** Next.js (https://nextjs.org)
- **Version:** v15.5.26
- **Released:** Sep 22, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/nextjs/updates/v15.5.26/

## Executive Summary (TL;DR)
Next.js v15.5.26. Source highlight: This release contains additional security hardening for `next/og`. For more information, check out https://nextjs.org/blog/nextjs-security-update-september-22-2026

## Upgrade Command
```bash
npm install --save-exact next@15.5.26
```