The minimum version of PostgreSQL Prisma supports is version 9.6. If you’re either using 9.4 or 9.5, you will need to update your PostgreSQL version to at least 9.6.
Refer to our [system requirements](https://www.prisma.io/docs/reference/database-reference/supported-databases) for the minimum database versions Prisma requires.
Prisma Client embedded SQLite version upgrade
We upgraded the embedded version of SQLite from 3.35.4 to 3.41.2. We do not anticipate any breaking changes or changes needed in projects using SQLite. However, if you’re using SQLite, especially with raw queries that might go beyond Prisma's functionality, make sure to check [the SQLite changelog](https://www.sqlite.org/changes.html).
Removal of `rejectOnNotFound` property
In version 5.0.0, we removed the `rejectOnNotFound` parameter from Prisma Client that was deprecated in version 4.0.0. We removed this feature to provide better type-safety using the `findUniqueOrThrow` and `findFirstOrThrow` methods as well have a consistent API.
If you are using the `rejectOnNotFound` parameter we recommend either:
- Replacing your queries with the `findFirstOrThrow` or `findUniqueOrThrow` methods if enabled at a *query-level*
- Using a [Prisma Client extension](https://www.prisma.io/docs/concepts/components/prisma-client/client-extensions) to overload the `findFirstOrThrow` and `findUniqueOrThrow` model methods with your custom error handling if enabled at the *client-level*
We recommend taking a look at the [upgrade guide](https://www.prisma.io/docs/guides/upgrade-guides/upgrading-versions/upgrading-to-prisma-5#removal-of-array-shortcutsremoval-of-rejectonnotfound-parameter) for more information on how to adapt your application if you’re using `rejectOnNotFound`.
`cockroachdb` provider is now required when connecting to a CockroachDB database
Prior to adding explicit support for CockroachDB with the `cockroachdb` provider in [3.9.0](https://github.com/prisma/prisma/releases/tag/3.9.0), it was possible to use the PostgreSQL provider when working with CockroachDB databases.
We’re now making it mandatory to use the CockroachDB connector when working with CockroachDB databases. CockroachDB and PostgreSQL have a few differences such as the available native types which impact the generated migrations.
If you were using the PostgreSQL connector to work with CockroachDB, take a look at the [upgrade guide](https://www.prisma.io/docs/guides/upgrade-guides/upgrading-versions/upgrading-to-prisma-5#cockroachdb-provider-is-now-required-when-connecting-to-a-cockroachdb-database) to learn how you can update your connector.
Removal of the generated `runtime/index.js` file from Prisma Client
With Prisma 5, we removed the `runtime/index.js` file from Prisma Client. If you were using APIs from `runtime/index.js`, such as `Decimal` , `PrismaClientKnownRequestError`, `NotFoundError`, `PrismaClientUnknownRequestError`, we recommend updating your imports:
diff
- import { Decimal } from 'prisma/client/runtime'
+ import { Prisma } from 'prisma/client'
// Usage update of Prisma Client's utilities
- Decimal
+ Prisma.Decimal
We recommend taking a look at the [upgrade guide](https://www.prisma.io/docs/guides/upgrade-guides/upgrading-versions/upgrading-to-prisma-5#removal-of-array-shortcutsremoval-of-runtimeindexjs-from-generated-client) to learn how you can migrate to Prisma 5
Removal of the `beforeExit` hook from the `library` query engine
We removed the `beforeExit` hook from the default `library` Query Engine. We recommend using the built-in Node.js exit events.
diff
-prisma.$on('beforeExit', () => { /* your code */ })
// Replacements
process.on('beforeExit', () => { /* your code */ })
process.on('exit', exitHandler)
process.on('SIGINT', exitHandler)
process.on('SIGTERM', exitHandler)
process.on('SIGUSR2', exitHandler)
We recommend taking a look at the [upgrade guide](https://www.prisma.io/docs/guides/upgrade-guides/upgrading-versions/upgrading-to-prisma-5#removal-of-the-beforeexit-hook-from-the-library-engine) to learn how you can migrate to Prisma 5.
Removal of deprecated `prisma2` executable
When we released Prisma 2, the `prisma2` executable was used to differentiate it from Prisma 1. In a later release, the `prisma2` CLI took over the `prisma` executable name.
The `prisma2` executable has been deprecated for a while and will now be removed. If you’re using `prisma2` in your scripts, replace it with `prisma`.
Removal of deprecated flags in the Prisma CLI
We removed the following deprecated flags in the Prisma CLI:
- **`--preview-feature`**: used in the `prisma db execute`, `prisma db seed`, and `prisma migrate diff` commands
- **`--experimental`** and **`--early-access-feature`**: used in the `prisma migrate` commands such as `prisma migrate dev`
- **`--force`**: for `prisma db push`. The `--force` flag was replaced by `--accept-data-loss` in version 2.17.0
- **`--experimental-reintrospection`** and **`--clean`**: for `prisma db pull`
In the event you’re using one of these flags, we recommend removing the flags.
Removal of deprecated `experimentalFeatures` generator property
In this release, we removed the `experimentalFeatures` property that used to be in the generator property in the Prisma schema but has been renamed to `previewFeatures` for a long time now. If you’re still using this property, you can either manually rename it to `previewFeatures` or use the VS Code action to rename it if you’re using the latest version of the Prisma VS Code extension.
Renamed `migration-engine` to `schema-engine`
In this release, we renamed the `migration-engine`, responsible for running introspection and migration commands, to `schema-engine` . For the majority of our users, no changes will be required. However, if you explicitly include or exclude the engine files you will need to update your code references. Refer to the [upgrade guide](https://www.prisma.io/docs/guides/upgrade-guides/upgrading-versions/upgrading-to-prisma-5#migration-engine-renamed-to-schema-engine) for more information.
Fixes and improvements
Prisma Client
- [Getting a string '(array)' in the generator config instead of the expected value when array is used](https://github.com/prisma/prisma/issues/9511)
- [Misleading error message from `create` call](https://github.com/prisma/prisma/issues/11425)
- [Client extensions incorrect typings when defined both specific model and all models methods](https://github.com/prisma/prisma/issues/17458)
- [UncheckedUpdateManyInput types lead to conflicting names](https://github.com/prisma/prisma/issues/18534)
- [`<Model>RelationFilterInput` does not take nullability into account](https://github.com/prisma/prisma/issues/18585)
- [Full text search query with `OR` broke after opting in to `jsonProtocol` feature.](https://github.com/prisma/prisma/issues/18885)
- [Prisma Client: remove list shorthands (for `jsonProtocol`)](https://github.com/prisma/prisma/issues/19303)
- [Remove outdated preview feature aliases (transactionApi, aggregateApi)](https://github.com/prisma/prisma/issues/19305)
- [Prisma Client generator: remove creation of a package.json](https://github.com/prisma/prisma/issues/19306)
- [Prisma Client: make `jsonProtocol` GA ](https://github.com/prisma/prisma/issues/19310)
- [Only upload engines files to `binaries.prisma.sh/all_commits/`](https://github.com/prisma/prisma/issues/19311)
- [Prisma Client: remove "beforeExit" hook from LibraryEngine/DataProxyEngine](https://github.com/prisma/prisma/issues/19312)
- [Prisma Client: remove `rejectOnNotFound`](https://github.com/prisma/prisma/issues/19315)
- [Prisma Client: remove `runtime/index.js` bundle from client](https://github.com/prisma/prisma/issues/19316)
- [Prisma CLI: remove non-existing `prisma dev` command](https://github.com/prisma/prisma/issues/19318)
- [Prisma Client: remove legacy `photonResolver` and `provider=photonjs` handling](https://github.com/prisma/prisma/issues/19319)
- [Prisma Client: make `fieldReference` GA](https://github.com/prisma/prisma/issues/19379)
- [Prisma Client: make `extendedWhereUnique` GA](https://github.com/prisma/prisma/issues/19380)
- [Remove backward compatibility for Prisma Client < 2.20 and Prisma CLI >= 2.20](https://github.com/prisma/prisma/issues/19417)
- [Prisma CLI: remove `prisma2` "executable"](https://github.com/prisma/prisma/issues/19438)
- [Query in findMany in prisma extends returns a wrong type](https://github.com/prisma/prisma/issues/19854)
- [Can't specify $queryRawUnsafe return type after extending prisma client](https://github.com/prisma/prisma/issues/19862)
- [FindMany returns wrong type after extending prisma client](https://github.com/prisma/prisma/issues/19864)
- [4.16.x cannot wrap `$extend` in factory function when `compilerOptions.composite` is `true`](https://github.com/prisma/prisma/issues/19866)
- [4.16: (MongoDB) Generated types for list composites are incorrect](https://github.com/prisma/prisma/issues/19880)
- [Prisma Client Extensions: $allModels: { $allOperations } sets `query` type to `never`](https://github.com/prisma/prisma/issues/19888)
- [Prisma Schema Type inside a Type not generating a right Payload](https://github.com/prisma/prisma/issues/19890)
- [Field references are not available on extended clients](https://github.com/prisma/prisma/issues/19892)
- [Prisma Client fluent API does not work with extends anymore on 4.16.1](https://github.com/prisma/prisma/issues/19921)
- [Prisma not generating correct payload for types in models for MongoDB for 4.16.1 ](https://github.com/prisma/prisma/issues/19933)
- [Prisma requires to install bun when generating client library ](https://github.com/prisma/prisma/issues/19945)
- [Getting wrong types with prisma client extensions](https://github.com/prisma/prisma/issues/19958)
- [Prisma Client: updating to 4.16.0 or 4.16.1 breaks Cloudflare worker, it errors with `The package "path" wasn't found on the file system but is built into node`](https://github.com/prisma/prisma/issues/19972)
- [Result types are incorrectly inferred when `undefined` explicitly passed to `select`/`include`](https://github.com/prisma/prisma/issues/19997)
- [Migrating to release: 4.16.2 throws typescript error: "TS1005: '?' expected".](https://github.com/prisma/prisma/issues/20024)
Prisma Migrate
- [Make connecting to a cockroachdb database with `provider = "postgresql"` an error](https://github.com/prisma/prisma/issues/13222)
- [Remove the deprecated `experimentalFeatures` generator property](https://github.com/prisma/prisma/issues/16294)
- [Remove support for PostgreSQL 9.4 and 9.5](https://github.com/prisma/prisma/issues/19300)
- [Upgrade embedded SQLite version](https://github.com/prisma/prisma/issues/19301)
- [Drop support for Node.js v14](https://github.com/prisma/prisma/issues/19304)
- [`db pull`: Remove the version checker from introspection](https://github.com/prisma/prisma/issues/19314)
- [Prisma CLI: remove undocumented `doctor` command](https://github.com/prisma/prisma/issues/19317)
- [Rename migration-engine to schema-engine](https://github.com/prisma/prisma/issues/19321)
- [Prisma CLI: remove deprecated flags, arguments and "old migrate" logic](https://github.com/prisma/prisma/issues/19448)
- [Remove obsolete `experimentalFeatures` generator property](https://github.com/prisma/prisma/issues/19540)
- [Remove usage / mention of `experimentalFeatures`](https://github.com/prisma/prisma/issues/19541)
Language tools (e.g. VS Code)
- [Mark `experimentalFeatures` as obsolete](https://github.com/prisma/language-tools/issues/1435)
Credits
Huge thanks to michaelpoellath, RobertCraigie, Coder246, RDIL, oohwooh, rqres, zhiyan114, spudly, hayes, boennemann, DongGunYoon for helping!
📺 Join us for another "What's new in Prisma" live stream
Learn about the latest release and other news from the Prisma community by joining us for another ["What's new in Prisma"](https://youtube.com/playlist?list=PLn2e1F9Rfr6l1B9RP0A9NdX7i7QIWfBa7) live stream.
The stream takes place [on YouTube](https://youtu.be/6rlKp_eBdZA) on **Thursday, July 13** at **5 pm Berlin | 8 am San Francisco**.