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6.16.2

Today, we are issuing a 6.16.2 patch release.

Bug fixes

• In Prisma ORM 6.16.0, we've enabled usage of the new engineType = client with Prisma Postgres, but our validation rules permitted invalid combinations of Prisma Postgres URLs and driver adapters. This now produces a clear error message indicating Prisma Postgres URLs and driver adapters are mutually exclusive.
• In the previous minor release, we've included a change that calls unref() on NodeJS timers to prevent them from keeping the NodeJS event loop active. This change unintentionally affected non-NodeJS runtimes like workerd, where it has resulted in runtime errors. This behavior has been made conditional to prevent these runtime errors.

6.16.1

Today, we are issuing a 6.16.1 patch release.

Bug fixes

• In Prisma ORM 6.16.0, the driverAdapters and queryCompiler features were stabilized, but leftover code in the prisma-client-ts generator required them to still be specified in edge runtimes. This has now been fixed, runtimes like workerd and vercel-edge no longer require these preview features.

6.16.0

Today, we are excited to share the 6.16.0 stable release 🎉

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Prisma ORM

This section contains all the updates made in Prisma ORM v6.16.0.

Rust-free ORM and driver adapters are Generally Available

Eight months ago, we published our ORM manifesto with the first hint that we're going to remove the Rust-based query engine from Prisma ORM:

We're addressing this by migrating Prisma's core logic from Rust to TypeScript and redesigning the ORM to make customization and extension easier.

After a lot of hard work and feedback from the community, we're incredibly excited to share that the migration has been completed and you can now use Prisma ORM without its Rust engine in your production apps. 🎉 This is a major milestone in the history of Prisma ORM and comes with a lot of benefits:

• Reduced bundle size by ~90%
• Faster queries (check out our latest benchmarks)
• Lower CPU footprint
• Less deployment complexity
• Easier to make open-source contributions

… and overall a much better DX since you don't need to worry about the extra binary in your generated Prisma Client code any more.

While the Rust-free ORM will become the default in Prisma ORM v7 soon, for now you still need to opt-into using it:

1. Configure the generator block in your Prisma schema:

   generator client {
     provider   = "prisma-client" // (or "prisma-client-js") 
     output     = "../src/generated/prisma"
     engineType = "client"
   }
   

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• 58e44ee chore: cli - remove unused/unnecessary dependencies (#28081)
• c5ff908 chore: bump get-port to 7.1.0 (#28080)
• 9d1b883 feat(qc): stabilize driver adapters and the query compiler (#28046)
• 60a160d chore: consolidate versions for mariadb, libsql, effect (#28022)
• 0c1a8dd chore: consolidate ts-node (#28029)
• 0262bce chore: consolidate esbuild dependency (#28023)
• 701fe33 chore: pkg-up -> package-up 5.0.0 (#28011)
• 1e548df chore: remove strip-ansi (#28003)
• 013dcb2 chore: align vitest version to 3.2.4 (#28000)
• 055864b chore: remove deprecated dependencies @​types/rimraf, global-dirs (#27998)
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