# Next.js v15.2.0 — Release & Upgrade Intelligence
- **Product:** Next.js (https://nextjs.org)
- **Version:** v15.2.0
- **Released:** Feb 26, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/nextjs/updates/v15.2.0/

## Executive Summary (TL;DR)
Next.js v15.2.0. Source highlight: Fix `unstable_allowDynamic` when used with pnpm: #73732

## New Features
- feat: error code: #73332
- [Segment Cache] Add PPR header to segment prefetch: #73756
- Add additional error classes and error codes: #73862
- Add feature flag for new dev overlay: #73977
- Add SRI support for Node.js Runtime : #73891
- [Segment Cache] Add CacheStatus.Empty: #73667

## Improvements
- chore(next/image): improve imgopt api bypass detection for unsupported images: #73909
- Safely retrieve router, improve page reload logic: #74209
- [DevOverlay] Improve Storybook Structure: #74764
- perf(lint): cache the returned regex result: #74827
- [Turbopack] improve task optimization: #74837
- types: improve types in app-index: #75045

## Bug Fixes
- Fix `unstable_allowDynamic` when used with pnpm: #73732
- Fix receiveExpiredTags not always called: #73759
- fix: path escaping issue on windows: #73843
- fix(next@15): use the asset prefix when loading a CSS in App Router: #72095
- Fix error code check in windows: #73981
- fix: skip rendering dynamic root segment routes: #74039

## Upgrade Command
```bash
npm install --save-exact next@15.2.0
```