## Latest Changes
+### Highlights
+
+Now you can declare `Query`, `Header`, and `Cookie` parameters with Pydantic models. 🎉
+
+#### `Query` Parameter Models
+
+Use Pydantic models for `Query` parameters:
+
+```python
+from typing import Annotated, Literal
+
+from fastapi import FastAPI, Query
+from pydantic import BaseModel, Field
+
+app = FastAPI()
+
+
+class FilterParams(BaseModel):
+ limit: int = Field(100, gt=0, le=100)
+ offset: int = Field(0, ge=0)
+ order_by: Literal["created_at", "updated_at"] = "created_at"
+ tags: list[str] = []
+
+
+@app.get("/items/")
+async def read_items(filter_query: Annotated[FilterParams, Query()]):
+ return filter_query
+```
+
+Read the new docs: [Query Parameter Models](https://fastapi.tiangolo.com/tutorial/query-param-models/).
+
+#### `Header` Parameter Models
+
+Use Pydantic models for `Header` parameters:
+
+```python
+from typing import Annotated
+
+from fastapi import FastAPI, Header
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class CommonHeaders(BaseModel):
+ host: str
+ save_data: bool
+ if_modified_since: str | None = None
+ traceparent: str | None = None
+ x_tag: list[str] = []
+
+
+@app.get("/items/")
+async def read_items(headers: Annotated[CommonHeaders, Header()]):
+ return headers
+```
+
+Read the new docs: [Header Parameter Models](https://fastapi.tiangolo.com/tutorial/header-param-models/).
+
+#### `Cookie` Parameter Models
+
+Use Pydantic models for `Cookie` parameters:
+
+```python
+from typing import Annotated
+
+from fastapi import Cookie, FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Cookies(BaseModel):
+ session_id: str
+ fatebook_tracker: str | None = None
+ googall_tracker: str | None = None
+
+
+@app.get("/items/")
+async def read_items(cookies: Annotated[Cookies, Cookie()]):
+ return cookies
+```
+
+Read the new docs: [Cookie Parameter Models](https://fastapi.tiangolo.com/tutorial/cookie-param-models/).
+
+#### Forbid Extra Query (Cookie, Header) Parameters
+
+Use Pydantic models to restrict extra values for `Query` parameters (also applies to `Header` and `Cookie` parameters).
+
+To achieve it, use Pydantic's `model_config = {"extra": "forbid"}`:
+
+```python
+from typing import Annotated, Literal
+
+from fastapi import FastAPI, Query
+from pydantic import BaseModel, Field
+
+app = FastAPI()
+
+
+class FilterParams(BaseModel):
+ model_config = {"extra": "forbid"}
+
+ limit: int = Field(100, gt=0, le=100)
+ offset: int = Field(0, ge=0)
+ order_by: Literal["created_at", "updated_at"] = "created_at"
+ tags: list[str] = []
+
+
+@app.get("/items/")
+async def read_items(filter_query: Annotated[FilterParams, Query()]):
+ return filter_query
+```
+
+This applies to `Query`, `Header`, and `Cookie` parameters, read the new docs:
+
+* [Forbid Extra Query Parameters](https://fastapi.tiangolo.com/tutorial/query-param-models/#forbid-extra-query-parameters)
+* [Forbid Extra Headers](https://fastapi.tiangolo.com/tutorial/header-param-models/#forbid-extra-headers)
+* [Forbid Extra Cookies](https://fastapi.tiangolo.com/tutorial/cookie-param-models/#forbid-extra-cookies)
+
### Features
* ✨ Add support for Pydantic models for parameters using `Query`, `Cookie`, `Header`. PR [#12199](https://github.com/fastapi/fastapi/pull/12199) by [@tiangolo](https://github.com/tiangolo).