# Prisma 5.15.1 — Release & Upgrade Intelligence
- **Product:** Prisma (https://prisma.io)
- **Version:** 5.15.1
- **Released:** Jun 18, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/prisma/updates/5.15.1/

## Executive Summary (TL;DR)
Prisma 5.15.1. Source highlight: Today, we are issuing the `5.15.1` patch release.

## Bug Fixes
- internal error: entered unreachable code
- Got error 'internal error: entered unreachable code' when trying to perform an upsert.
- Prisma Client errors on SQLite with internal error: entered unreachable code when running 2 concurrent upsert 
- `ConnectionError(Timed out during query execution.)` during seeding
- SQLite timeouts after upgrade from prisma 2 to prisma 4
- `ConnectionError(Timed out during query execution.)` error when using `Promise.all` for SQLite

## Upgrade Command
```bash
npm install --save-dev --save-exact prisma@5.15.1
```