prisma-upgrade-v7

name: prisma-upgrade-v7 description: Complete migration guide from Prisma ORM v6 to v7 covering all breaking changes. Use when upgrading Prisma versions, encountering v7 errors, or migrating existing projects. Triggers on "upgrade to prisma 7", "prisma 7 migration", "prisma-client-js to prisma-client", "driver adapter required". license: MIT metadata: author: prisma version: "7.0.0"

Upgrade to Prisma ORM 7

Complete guide for migrating from Prisma ORM v6 to v7. This upgrade introduces significant breaking changes including ESM-only support, required driver adapters, and a new configuration system.

When to Apply

Reference this skill when:

Upgrading from Prisma v6 to v7
Switching from prisma-client-js to prisma-client
Setting up driver adapters
Configuring prisma.config.ts
Fixing import errors after upgrade

Important Notes

MongoDB not yet supported in v7 - Continue using v6 for MongoDB
Node.js 20.19.0+ required
TypeScript 5.4.0+ required

Upgrade Steps Overview

Update packages to v7
Configure ESM in package.json
Update TypeScript configuration
Update schema generator block
Create prisma.config.ts
Install and configure driver adapter
Update Prisma Client imports
Update client instantiation
Remove deprecated code (middleware, env vars)
Run generate and test

Quick Upgrade Commands

# Update packages
npm install @prisma/client@7
npm install -D prisma@7

# Install driver adapter (PostgreSQL example)
npm install @prisma/adapter-pg

# Install dotenv for env loading
npm install dotenv

# Regenerate client
npx prisma generate

Breaking Changes Summary

Change	v6	v7
Module format	CommonJS	ESM only
Generator provider	`prisma-client-js`	`prisma-client`
Output path	Auto (node_modules)	Required explicit
Driver adapters	Optional	Required
Config file	`.env` + schema	`prisma.config.ts`
Env loading	Automatic	Manual (dotenv)
Middleware	`$use()`	Client Extensions
Metrics	Preview feature	Removed

Rule Files

Detailed migration guides for each breaking change:

rules/esm-support.md        - ESM module configuration
rules/schema-changes.md     - Generator and schema updates
rules/driver-adapters.md    - Required driver adapter setup
rules/prisma-config.md      - New configuration file
rules/env-variables.md      - Environment variable loading
rules/client-imports.md     - Updated import paths
rules/removed-features.md   - Middleware, metrics, CLI flags
rules/accelerate-users.md   - Special handling for Accelerate
rules/ssl-certificates.md   - SSL validation changes

Step-by-Step Migration

1. Update package.json for ESM

{
  "type": "module"
}

2. Update tsconfig.json

{
  "compilerOptions": {
    "module": "ESNext",
    "moduleResolution": "bundler",
    "target": "ES2023",
    "strict": true,
    "esModuleInterop": true
  }
}

3. Update schema.prisma

// Before (v6)
generator client {
  provider = "prisma-client-js"
}

// After (v7)
generator client {
  provider = "prisma-client"
  output   = "../generated"
}

4. Create prisma.config.ts

import 'dotenv/config'
import { defineConfig, env } from 'prisma/config'

export default defineConfig({
  schema: 'prisma/schema.prisma',
  migrations: {
    path: 'prisma/migrations',
  },
  datasource: {
    url: env('DATABASE_URL'),
  },
})

5. Install driver adapter

# PostgreSQL
npm install @prisma/adapter-pg

# MySQL
npm install @prisma/adapter-mariadb mariadb

# SQLite
npm install @prisma/adapter-better-sqlite3

# Prisma Postgres
npm install @prisma/adapter-ppg @prisma/ppg

# Neon
npm install @prisma/adapter-neon

6. Update client instantiation

// Before (v6)
import { PrismaClient } from '@prisma/client'
const prisma = new PrismaClient()

// After (v7)
import { PrismaClient } from '../generated/client'
import { PrismaPg } from '@prisma/adapter-pg'

const adapter = new PrismaPg({
  connectionString: process.env.DATABASE_URL
})
const prisma = new PrismaClient({ adapter })

7. Run migrations and generate

npx prisma generate
npx prisma migrate dev  # if needed