diff --git a/README.md b/README.md
index 5729a3039..4574b138c 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@
   - [Linting](#linting)
   - [Enums](#enums)
   - [Config API](#config-api)
+- [Migrating](#migrating)
 - [Contributing](#contributing)
 
 ## About
@@ -160,7 +161,7 @@ $ openapi-ts --help
     -o, --output <value>      Output directory (required)
     -c, --client <value>      HTTP client to generate [fetch, xhr, node, axios, angular] (default: "fetch")
     --name <value>            Custom client class name
-    --useOptions <value>      Use options instead of arguments (default: false)
+    --useOptions <value>      Use options instead of arguments (default: true)
     --base <value>            Manually set base in OpenAPI config instead of inferring from server value
     --enums                   Generate JavaScript objects from enum definitions (default: false)
     --exportCore <value>      Write core files to disk (default: true)
@@ -179,6 +180,24 @@ $ openapi-ts --help
     -h, --help                display help for command
 ```
 
+## Migrating
+
+While we try to avoid breaking changes, sometimes it's unavoidable in order to offer you the latest features.
+
+### v0.27.38
+
+### `useOptions: true`
+
+By default, generated clients will use a single object argument to pass values to API calls. This is a significant change from the previous default of unspecified array of arguments. If migrating your application in one go isn't feasible, we recommend deprecating your old client and generating a new client.
+
+```ts
+import { DefaultService } from 'client' // <-- old client with array arguments
+
+import { DefaultService } from 'client_v2' // <-- new client with options argument
+```
+
+This way, you can gradually switch over to the new syntax as you update parts of your code. Once you've removed all instances of `client` imports, you can safely delete the old `client` folder and find and replace all `client_v2` calls to `client`.
+
 ## Contributing
 
 Please refer to the [contributing guide](CONTRIBUTING.md) for how to install the project for development purposes.
diff --git a/package-lock.json b/package-lock.json
index 5678c7122..9ec15820e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@hey-api/openapi-ts",
-    "version": "0.27.37",
+    "version": "0.27.38",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "@hey-api/openapi-ts",
-            "version": "0.27.37",
+            "version": "0.27.38",
             "license": "MIT",
             "dependencies": {
                 "@apidevtools/json-schema-ref-parser": "11.5.4",
diff --git a/package.json b/package.json
index 8a86ac0eb..a2827eacd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@hey-api/openapi-ts",
-    "version": "0.27.37",
+    "version": "0.27.38",
     "type": "module",
     "description": "Turn your OpenAPI specification into a beautiful TypeScript client",
     "homepage": "https://github.com/hey-api/openapi-ts/",
diff --git a/src/index.ts b/src/index.ts
index ea03e0ea4..5ac8ff610 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -94,7 +94,7 @@ const getConfig = async (userConfig: UserConfig, dependencies: Dependencies) =>
         request,
         serviceResponse = 'body',
         useDateType = false,
-        useOptions = false,
+        useOptions = true,
         write = true,
     } = userConfig;
 
@@ -110,6 +110,12 @@ const getConfig = async (userConfig: UserConfig, dependencies: Dependencies) =>
         throw new Error('🚫 output must be within the current working directory');
     }
 
+    if (!useOptions) {
+        console.warn(
+            '⚠️ Deprecation warning: useOptions set to false. This setting will be removed in future versions. Please migrate useOptions to true https://github.com/hey-api/openapi-ts#v0.27.38'
+        );
+    }
+
     const client = userConfig.client || inferClient(dependencies);
     const output = path.resolve(process.cwd(), userConfig.output);
 
diff --git a/src/types/config.ts b/src/types/config.ts
index d07ec5cdb..0c8611af9 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -86,7 +86,7 @@ export interface UserConfig {
     useDateType?: boolean;
     /**
      * Use options or arguments functions
-     * @default false
+     * @default true
      */
     useOptions?: boolean;
     /**
diff --git a/test/sample.cjs b/test/sample.cjs
index 53812d940..e92c682f7 100644
--- a/test/sample.cjs
+++ b/test/sample.cjs
@@ -7,7 +7,6 @@ const main = async () => {
         enums: true,
         input: './test/spec/v3.json',
         output: './test/generated/v3/',
-        useOptions: true,
     };
 
     const { createClient } = await import(path.resolve(process.cwd(), 'dist/index.js'));