# Next.js v15.5.4 — Release & Upgrade Intelligence
- **Product:** Next.js (https://nextjs.org)
- **Version:** v15.5.4
- **Released:** Sep 23, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/nextjs/updates/v15.5.4/

## Executive Summary (TL;DR)
Next.js v15.5.4. Source highlight: This release is backporting bug fixes. It does **not** include all pending features/changes on canary.

## Improvements
- [turbopack] Improve handling of symlink resolution errors in track_glob and read_glob (#83357)

## Bug Fixes
- fix: ensure onRequestError is invoked when otel enabled (#83343)
- fix: devtools initial position should be from next config (#83571)
- [devtool] fix overlay styles are missing (#83721)
- fix: error overlay not closing when backdrop clicked (#83981)
- docs: september improvements and fixes (#83997)

## Upgrade Command
```bash
npm install --save-exact next@15.5.4
```