diff --git a/.changeset/gentle-flies-invent.md b/.changeset/gentle-flies-invent.md
index 83245fdaafd..3ee45460f0a 100644
--- a/.changeset/gentle-flies-invent.md
+++ b/.changeset/gentle-flies-invent.md
@@ -1,6 +1,7 @@
 ---
 '@keystone-next/keystone': major
 '@keystone-next/types': major
+'@keystone-next/test-utils-legacy': patch
 ---
 
-Removed the `none` case in `MigrationAction` and require that the PrismaClient is passed to be able to connect to the database for the `none-skip-client-generation` case.
+Removed `migrationAction` argument to `createSystem` and require that the PrismaClient is passed to `createSystem` to be able to connect to the database.
diff --git a/.changeset/great-tables-juggle.md b/.changeset/great-tables-juggle.md
new file mode 100644
index 00000000000..ebb3eb8b286
--- /dev/null
+++ b/.changeset/great-tables-juggle.md
@@ -0,0 +1,6 @@
+---
+'@keystone-next/keystone': major
+'@keystone-next/adapter-prisma-legacy': major
+---
+
+Removed `getDbSchemaName` and `getPrismaPath` database adapter options. To change the database schema that Keystone uses, you can add `?schema=whatever` to the database url.
diff --git a/.changeset/two-owls-pump.md b/.changeset/two-owls-pump.md
new file mode 100644
index 00000000000..51440564dc3
--- /dev/null
+++ b/.changeset/two-owls-pump.md
@@ -0,0 +1,5 @@
+---
+'@keystone-next/adapter-prisma-legacy': major
+---
+
+Removed migrationMode and all migration related methods on the adapter and instead require that a prisma client is passed to the adapter to be able to connect to the database
diff --git a/docs-next/pages/apis/config.mdx b/docs-next/pages/apis/config.mdx
index f1e488f4fdf..731a8bdd25a 100644
--- a/docs-next/pages/apis/config.mdx
+++ b/docs-next/pages/apis/config.mdx
@@ -69,12 +69,8 @@ As well as these common options, each adapter supports a number of optional adva
 Advanced configuration:
 
 - `enableLogging` (default: `false`): Enable logging from the Prisma client.
-- `getPrismaPath` (default: `() => '.keystone/prisma'` ): Set the location of the generated Prisma schema and client.
-- `getDbSchemaName` (default: `() => 'public'` ): Set the schema named used in the database.
 - `useMigrations` (default: `false`): Determines whether to use migrations or automatically force-update the database with the latest schema and potentially lose data.
 
-The functions for `getPrismaPath` and `getDbSchemaName` are each provided with the generated Prisma schema as a `string` in the `{ prismaSchema }` argument.
-
 ```typescript
 export default config({
   db: {
@@ -83,8 +79,6 @@ export default config({
     onConnect: async context => { /* ... */ },
     // Optional advanced configuration
     enableLogging: true,
-    getPrismaPath: ({ prismaSchema }) => '.prisma',
-    getDbSchemaName: ({ prismaSchema }) => 'prisma',
     useMigrations: true,
   },
   /* ... */
@@ -99,11 +93,8 @@ To use this option you must also set `{ experimental: { prismaSqlite: true } }`.
 Advanced configuration:
 
 - `enableLogging` (default: `false`): Enable logging from the Prisma client.
-- `getPrismaPath` (default: `() => '.keystone/prisma'` ): Set the location of the generated Prisma schema and client.
 - `useMigrations` (default: `false`): Determines whether to use migrations or automatically force-update the database with the latest schema and potentially lose data.
 
-The function for `getPrismaPath` is provided with the generated Prisma schema as a `string` in the `{ prismaSchema }` argument.
-
 ```typescript
 export default config({
   db: {
@@ -112,7 +103,6 @@ export default config({
     onConnect: async context => { /* ... */ },
     // Optional advanced configuration
     enableLogging: true,
-    getPrismaPath: ({ prismaSchema }) => '.prisma',
     useMigrations: true,
   },
   /* ... */
diff --git a/packages-next/keystone/src/lib/createKeystone.ts b/packages-next/keystone/src/lib/createKeystone.ts
index 4e1f2a76652..22ae256b000 100644
--- a/packages-next/keystone/src/lib/createKeystone.ts
+++ b/packages-next/keystone/src/lib/createKeystone.ts
@@ -1,13 +1,9 @@
 // @ts-ignore
 import { Keystone } from '@keystone-next/keystone-legacy';
 import { PrismaAdapter } from '@keystone-next/adapter-prisma-legacy';
-import type { KeystoneConfig, BaseKeystone, MigrationAction } from '@keystone-next/types';
+import type { KeystoneConfig, BaseKeystone } from '@keystone-next/types';
 
-export function createKeystone(
-  config: KeystoneConfig,
-  migrationAction: MigrationAction,
-  prismaClient?: any
-) {
+export function createKeystone(config: KeystoneConfig, prismaClient?: any) {
   // Note: For backwards compatibility we may want to expose
   // this as a public API so that users can start their transition process
   // by using this pattern for creating their Keystone object before using
@@ -16,8 +12,6 @@ export function createKeystone(
   let adapter;
   if (db.adapter === 'prisma_postgresql') {
     adapter = new PrismaAdapter({
-      migrationMode:
-        migrationAction === 'dev' ? (db.useMigrations ? 'dev' : 'prototype') : migrationAction,
       prismaClient,
       ...db,
       provider: 'postgresql',
@@ -30,8 +24,6 @@ export function createKeystone(
     }
     adapter = new PrismaAdapter({
       prismaClient,
-      migrationMode:
-        migrationAction === 'dev' ? (db.useMigrations ? 'dev' : 'prototype') : migrationAction,
       ...db,
       provider: 'sqlite',
     });
diff --git a/packages-next/keystone/src/lib/createSystem.ts b/packages-next/keystone/src/lib/createSystem.ts
index 564fa414577..dba9670d4c4 100644
--- a/packages-next/keystone/src/lib/createSystem.ts
+++ b/packages-next/keystone/src/lib/createSystem.ts
@@ -1,15 +1,11 @@
-import type { KeystoneConfig, MigrationAction } from '@keystone-next/types';
+import type { KeystoneConfig } from '@keystone-next/types';
 
 import { createGraphQLSchema } from './createGraphQLSchema';
 import { makeCreateContext } from './createContext';
 import { createKeystone } from './createKeystone';
 
-export function createSystem(
-  config: KeystoneConfig,
-  migrationAction: MigrationAction,
-  prismaClient?: any
-) {
-  const keystone = createKeystone(config, migrationAction, prismaClient);
+export function createSystem(config: KeystoneConfig, prismaClient?: any) {
+  const keystone = createKeystone(config, prismaClient);
 
   const graphQLSchema = createGraphQLSchema(config, keystone, 'public');
 
diff --git a/packages-next/keystone/src/scripts/build/build.ts b/packages-next/keystone/src/scripts/build/build.ts
index 000aaaaaa4a..c31349cb628 100644
--- a/packages-next/keystone/src/scripts/build/build.ts
+++ b/packages-next/keystone/src/scripts/build/build.ts
@@ -87,7 +87,7 @@ export async function build(cwd: string) {
 
   const config = initConfig(requireSource(CONFIG_PATH).default);
 
-  const { keystone, graphQLSchema } = createSystem(config, 'none-skip-client-generation');
+  const { keystone, graphQLSchema } = createSystem(config);
 
   await validateCommittedArtifacts(graphQLSchema, keystone, cwd);
 
diff --git a/packages-next/keystone/src/scripts/postinstall.ts b/packages-next/keystone/src/scripts/postinstall.ts
index 6b5540ab1e7..79105db2f35 100644
--- a/packages-next/keystone/src/scripts/postinstall.ts
+++ b/packages-next/keystone/src/scripts/postinstall.ts
@@ -11,7 +11,7 @@ import { CONFIG_PATH } from './utils';
 export async function postinstall(cwd: string, shouldFix: boolean) {
   const config = initConfig(requireSource(CONFIG_PATH).default);
 
-  const { keystone, graphQLSchema } = createSystem(config, 'none-skip-client-generation');
+  const { keystone, graphQLSchema } = createSystem(config);
 
   if (shouldFix) {
     await generateCommittedArtifacts(graphQLSchema, keystone, cwd);
diff --git a/packages-next/keystone/src/scripts/prisma.ts b/packages-next/keystone/src/scripts/prisma.ts
index 53b983da7ac..1218386cb1c 100644
--- a/packages-next/keystone/src/scripts/prisma.ts
+++ b/packages-next/keystone/src/scripts/prisma.ts
@@ -8,7 +8,7 @@ import { CONFIG_PATH } from './utils';
 export async function prisma(cwd: string, args: string[]) {
   const config = initConfig(requireSource(CONFIG_PATH).default);
 
-  const { keystone, graphQLSchema } = createSystem(config, 'none-skip-client-generation');
+  const { keystone, graphQLSchema } = createSystem(config);
 
   await validateCommittedArtifacts(graphQLSchema, keystone, cwd);
   await generateNodeModulesArtifacts(graphQLSchema, keystone, cwd);
diff --git a/packages-next/keystone/src/scripts/run/dev.ts b/packages-next/keystone/src/scripts/run/dev.ts
index dc18152fba4..76f22bcb285 100644
--- a/packages-next/keystone/src/scripts/run/dev.ts
+++ b/packages-next/keystone/src/scripts/run/dev.ts
@@ -31,7 +31,7 @@ export const dev = async (cwd: string) => {
   const config = initConfig(requireSource(CONFIG_PATH).default);
   const initKeystone = async () => {
     {
-      const { keystone, graphQLSchema } = createSystem(config, 'none-skip-client-generation');
+      const { keystone, graphQLSchema } = createSystem(config);
 
       console.log('✨ Generating GraphQL and Prisma schemas');
       const prismaSchema = (await generateCommittedArtifacts(graphQLSchema, keystone, cwd)).prisma;
@@ -48,11 +48,7 @@ export const dev = async (cwd: string) => {
 
     const prismaClient = requirePrismaClient(cwd);
 
-    const { keystone, graphQLSchema, createContext } = createSystem(
-      config,
-      'none-skip-client-generation',
-      prismaClient
-    );
+    const { keystone, graphQLSchema, createContext } = createSystem(config, prismaClient);
 
     console.log('✨ Connecting to the database');
     await keystone.connect({ context: createContext().sudo() });
diff --git a/packages-next/keystone/src/scripts/run/start.ts b/packages-next/keystone/src/scripts/run/start.ts
index d6e4875799d..7d430e14d4b 100644
--- a/packages-next/keystone/src/scripts/run/start.ts
+++ b/packages-next/keystone/src/scripts/run/start.ts
@@ -16,11 +16,7 @@ export const start = async (cwd: string) => {
     throw new Error('keystone-next build must be run before running keystone-next start');
   }
   const config = initConfig(require(apiFile).config);
-  const { keystone, graphQLSchema, createContext } = createSystem(
-    config,
-    'none-skip-client-generation',
-    requirePrismaClient(cwd)
-  );
+  const { keystone, graphQLSchema, createContext } = createSystem(config, requirePrismaClient(cwd));
 
   console.log('✨ Connecting to the database');
   await keystone.connect({ context: createContext().sudo() });
diff --git a/packages-next/types/src/config/index.ts b/packages-next/types/src/config/index.ts
index 362975add1b..60338a5d500 100644
--- a/packages-next/types/src/config/index.ts
+++ b/packages-next/types/src/config/index.ts
@@ -65,14 +65,11 @@ export type DatabaseConfig = DatabaseCommon &
         adapter: 'prisma_postgresql';
         useMigrations?: boolean;
         enableLogging?: boolean;
-        getPrismaPath?: (arg: { prismaSchema: any }) => string;
-        getDbSchemaName?: (arg: { prismaSchema: any }) => string;
       }
     | {
         adapter: 'prisma_sqlite';
         useMigrations?: boolean;
         enableLogging?: boolean;
-        getPrismaPath?: (arg: { prismaSchema: any }) => string;
       }
   );
 
diff --git a/packages-next/types/src/core.ts b/packages-next/types/src/core.ts
index 0aecfdd0b96..7c05de22361 100644
--- a/packages-next/types/src/core.ts
+++ b/packages-next/types/src/core.ts
@@ -66,5 +66,3 @@ export function getGqlNames({
     relateToOneInputName: `${_itemQueryName}RelateToOneInput`,
   };
 }
-
-export type MigrationAction = 'none-skip-client-generation' | 'dev';
diff --git a/packages/adapter-prisma/README.md b/packages/adapter-prisma/README.md
index 370be64edd8..a8c72c3814b 100644
--- a/packages/adapter-prisma/README.md
+++ b/packages/adapter-prisma/README.md
@@ -35,32 +35,12 @@ _**Default:**_ `DATABASE_URL`
 The connection string for your database, in the form `postgres://<user>:<password>@<host>:<port>/<dbname>`.
 By default it will use the value of the environment variable `DATABASE_URL`. You can learn more about the connection string format used in the [Prisma docs](https://www.prisma.io/docs/reference/database-connectors/connection-urls).
 
-### `getPrismaPath`
-
-_**Default:**_ `({ prismaSchema }) => '.prisma'`
-
-A function which returns a directory name for storing the generated Prisma schema and client.
-
-### `getDbSchemaName`
-
-_**Default:**_ `({ prismaSchema }) => 'public'`
-
-A function which returns a database schema name to use for storage of all Keystone tables in your database.
-
-> You can also set the schema name by including the suffix `?schema=...` in your `DATABASE_URL` or `url`. In this case you should set this value to `() => null`.
-
 ### `enableLogging`
 
 _**Default:**_ `false`
 
 Enables logging at the [`query`](https://www.prisma.io/docs/reference/tools-and-interfaces/prisma-client/logging#overview) level in the Prisma client.
 
-### `migrationMode`
-
-_**Default:**_ `'dev'`
-
-Controls how and when migrations are applied. One of `'dev'`, `'prototype'`, `'createOnly'`, or `'none'`. In `prototype` mode, `prisma db push` is used to sync the database tables without generating migration files. In `dev` mode, migrations files are generated and applied whenever the schema changes. In `createOnly` mode, migrations are generated but not applied. In `none` mode, no migrations are generated or applied.
-
 ## Setup
 
 Before running Keystone with the Prisma adapter you will need to have a PostgreSQL database to connect to.
diff --git a/packages/adapter-prisma/src/adapter-prisma.js b/packages/adapter-prisma/src/adapter-prisma.js
index 0f53299ddff..b8f4ed357a7 100644
--- a/packages/adapter-prisma/src/adapter-prisma.js
+++ b/packages/adapter-prisma/src/adapter-prisma.js
@@ -1,29 +1,17 @@
-import fs from 'fs';
-import path from 'path';
 import pWaterfall from 'p-waterfall';
-import { getGenerator, formatSchema } from '@prisma/sdk';
+import { formatSchema } from '@prisma/sdk';
 import { defaultObj, mapKeys, identity, flatten } from '@keystone-next/utils-legacy';
-import {
-  runPrototypeMigrations,
-  devMigrations,
-  deployMigrations,
-  // eslint-disable-next-line import/no-unresolved
-} from './migrations';
 
 class PrismaAdapter {
   constructor(config = {}) {
     this.config = { ...config };
     this.listAdapters = {};
     this.listAdapterClass = undefined;
-    this._prismaClient = config.prismaClient;
 
     this.listAdapterClass = PrismaListAdapter;
     this.name = 'prisma';
     this.provider = this.config.provider || 'postgresql';
-    this.migrationMode = this.config.migrationMode || 'prototype';
 
-    this.getPrismaPath = this.config.getPrismaPath || (() => '.prisma');
-    this.getDbSchemaName = this.config.getDbSchemaName || (() => 'public');
     this.enableLogging = this.config.enableLogging || false;
     this.url = this.config.url || process.env.DATABASE_URL;
   }
@@ -70,45 +58,7 @@ class PrismaAdapter {
     }
   }
 
-  async _prepareSchema(rels) {
-    const clientDir = 'generated-client';
-    const prismaSchema = await this._generatePrismaSchema({ rels, clientDir });
-    // See if there is a prisma client available for this hash
-    const prismaPath = this.getPrismaPath({ prismaSchema });
-    this.schemaPath = path.join(prismaPath, 'schema.prisma');
-    this.clientPath = path.resolve(`${prismaPath}/${clientDir}`);
-    this.dbSchemaName = this.getDbSchemaName({ prismaSchema });
-    this.prismaSchema = prismaSchema;
-    return { prismaSchema };
-  }
-
-  _url() {
-    // By default we put `schema=public` onto all `DATABASE_URL` values.
-    // If this isn't what a user wants, they can update `getSchemaName` to return either
-    // a different dbSchemaName, or null if they just want to use the DATABASE_URL as it is.
-    // TODO: Should we default to 'public' or null?
-    if (this.provider === 'postgresql') {
-      return this.dbSchemaName ? `${this.url}?schema=${this.dbSchemaName}` : this.url;
-    } else if (this.provider === 'sqlite') {
-      return this.url;
-    }
-  }
-
-  async deploy(rels) {
-    // Apply any migrations which haven't already been applied
-    await this._prepareSchema(rels);
-    await deployMigrations(this._url(), path.resolve(this.schemaPath));
-  }
-
-  async _getPrismaClient({ rels }) {
-    if (this._prismaClient) {
-      return this._prismaClient;
-    }
-    await this._generateClient(rels);
-    return require(this.clientPath).PrismaClient;
-  }
-
-  async _connect({ rels }) {
+  async _connect() {
     // the adapter was already connected since we have a prisma client
     // it may have been disconnected since it was connected though
     // so connect but don't regenerate the prisma client
@@ -116,58 +66,17 @@ class PrismaAdapter {
       await this.prisma.$connect();
       return;
     }
-    const PrismaClient = await this._getPrismaClient({ rels });
+    if (!this.config.prismaClient) {
+      throw new Error('You must pass the prismaClient option to connect to a database');
+    }
+    const PrismaClient = this.config.prismaClient;
     this.prisma = new PrismaClient({
       log: this.enableLogging && ['query'],
-      datasources: { [this.provider]: { url: this._url() } },
+      datasources: { [this.provider]: { url: this.url } },
     });
     await this.prisma.$connect();
   }
 
-  async _generateClient(rels) {
-    // Generate a formatted schema
-    // note that we currently still need to call _prepareSchema even during
-    // a `keystone-next start` because it has various side effects
-    const { prismaSchema } = await this._prepareSchema(rels);
-
-    if (this.migrationMode !== 'none-skip-client-generation') {
-      this._writePrismaSchema({ prismaSchema });
-
-      // Generate prisma client and run prisma migrations
-      await Promise.all([this._generatePrismaClient(), this._runMigrations({ prismaSchema })]);
-    }
-  }
-
-  async _runMigrations({ prismaSchema }) {
-    if (this.migrationMode === 'prototype') {
-      // Sync the database directly, without generating any migration
-      await runPrototypeMigrations(this._url(), prismaSchema, path.resolve(this.schemaPath));
-    } else if (this.migrationMode === 'dev') {
-      // Generate and apply a migration if required.
-      await devMigrations(this._url(), prismaSchema, path.resolve(this.schemaPath));
-    } else if (this.migrationMode === 'none') {
-      // Explicitly disable running any migrations
-    } else {
-      throw new Error(
-        `migrationMode must be one of 'dev', 'prototype', 'none-skip-client-generation', or 'none`
-      );
-    }
-  }
-
-  async _writePrismaSchema({ prismaSchema }) {
-    // Make output dir (you know, just in case!)
-    fs.mkdirSync(this.clientPath, { recursive: true });
-
-    // Write prisma file
-    fs.writeSync(fs.openSync(this.schemaPath, 'w'), prismaSchema);
-  }
-
-  async _generatePrismaClient() {
-    const generator = await getGenerator({ schemaPath: this.schemaPath });
-    await generator.generate();
-    generator.stop();
-  }
-
   async _generatePrismaSchema({ rels, clientDir }) {
     const models = Object.values(this.listAdapters).map(listAdapter => {
       const scalarFields = flatten(
diff --git a/packages/test-utils/src/index.ts b/packages/test-utils/src/index.ts
index 91993a66a70..0d62d2fa8b6 100644
--- a/packages/test-utils/src/index.ts
+++ b/packages/test-utils/src/index.ts
@@ -26,7 +26,6 @@ const hashPrismaSchema = memoizeOne(prismaSchema =>
 
 const argGenerator = {
   prisma_postgresql: () => ({
-    migrationMode: 'none-skip-client-generation',
     url: process.env.DATABASE_URL!,
     provider: 'postgresql',
     getDbSchemaName: () => null as any,
@@ -34,7 +33,6 @@ const argGenerator = {
     enableLogging: false,
   }),
   prisma_sqlite: () => ({
-    migrationMode: 'none-skip-client-generation',
     url: process.env.DATABASE_URL!,
     provider: 'sqlite',
     // Turn this on if you need verbose debug info
@@ -70,7 +68,7 @@ async function setupFromConfig({
   const config = initConfig({ ..._config, db: db!, ui: { isDisabled: true } });
 
   const prismaClient = await (async () => {
-    const { keystone, graphQLSchema } = createSystem(config, 'none-skip-client-generation');
+    const { keystone, graphQLSchema } = createSystem(config);
     const artifacts = await getCommittedArtifacts(graphQLSchema, keystone);
     const hash = hashPrismaSchema(artifacts.prisma);
     if (adapterName === 'prisma_postgresql') {
@@ -92,11 +90,7 @@ async function setupFromConfig({
     return requirePrismaClient(cwd);
   })();
 
-  const { keystone, createContext, graphQLSchema } = createSystem(
-    config,
-    'none-skip-client-generation',
-    prismaClient
-  );
+  const { keystone, createContext, graphQLSchema } = createSystem(config, prismaClient);
 
   const app = await createExpressServer(config, graphQLSchema, createContext, true, '', false);