Version 0.18.0

Added

• Change default chunk size from 4Kb to 64Kb on FileResponse #1345.
• Add support for functools.partial in WebSocketRoute #1356.
• Add StaticFiles packages with directory #1350.
• Allow environment options in Jinja2Templates #1401.
• Allow HEAD method on HttpEndpoint #1346.
• Accept additional headers on websocket.accept message #1361 and #1422.
• Add reason to WebSocket close ASGI event #1417.
• Add headers attribute to UploadFile #1382.
• Don't omit Content-Length header for Content-Length: 0 cases #1395.
• Don't set headers for responses with 1xx, 204 and 304 status code #1397.
• SessionMiddleware.max_age now accepts None, so cookie can last as long as the browser session #1387.

Fixed

• Tweak hashlib.md5() function on FileResponses ETag generation. The parameter usedforsecurity flag is set to False, if the flag is available on the system. This fixes an error raised on systems with FIPS enabled #1366 and #1410.
• Fix path_params type on url_path_for() method i.e. turn str into Any #1341.
• Host now ignores port on routing #1322.

Version 0.17.1

Fixed

• Fix IndexError in authentication requires when wrapped function arguments are distributed between *args and **kwargs #1335.

Version 0.17.0

Added

• Response.delete_cookie now accepts the same parameters as Response.set_cookie #1228.
• Update the Jinja2Templates constructor to allow PathLike #1292.

Fixed

• Fix BadSignature exception handling in SessionMiddleware #1264.
• Change HTTPConnection.__getitem__ return type from str to typing.Any #1118.
• Change ImmutableMultiDict.getlist return type from typing.List[str] to typing.List[typing.Any] #1235.
• Handle OSError exceptions on StaticFiles #1220.
• Fix StaticFiles 404.html in HTML mode #1314.
• Prevent anyio.ExceptionGroup in error views under a BaseHTTPMiddleware #1262.

Removed

• Remove GraphQL support #1198.

Version 0.16.0

Added

• Added Encode funding option
  #1219

Fixed

• starlette.websockets.WebSocket instances are now hashable and compare by identity
  #1039
• A number of fixes related to running task groups in lifespan
  #1213,
  #1227

Deprecated/removed

• The method starlette.templates.Jinja2Templates.get_env was removed
  #1218
• The ClassVar starlette.testclient.TestClient.async_backend was removed,
  the backend is now configured using constructor kwargs
  #1211
• Passing an Async Generator Function or a Generator Function to starlette.router.Router(lifespan_context=) is deprecated. You should wrap your lifespan in @contextlib.asynccontextmanager.
  #1227
  #1110

Version 0.15.0

0.15.0

This release includes major changes to the low-level asynchronous parts of Starlette. As a result, Starlette now depends on AnyIO and some minor API changes have occurred. Another significant change with this release is the deprecation of built-in GraphQL support.

Added

• Starlette now supports Trio as an async runtime via AnyIO - #1157.
• TestClient.websocket_connect() now must be used as a context manager.
• Initial support for Python 3.10 - #1201.
• The compression level used in GZipMiddleware is now adjustable - #1128.

Fixed

• Several fixes to CORSMiddleware. See #1111, #1112, #1113, #1199.
• Improved exception messages in the case of duplicated path parameter names - #1177.
• RedirectResponse now uses quote instead of quote_plus encoding for the Location header to better match the behaviour in other frameworks such as Django - #1164.
• Exception causes are now preserved in more cases - #1158.
• Session cookies now use the ASGI root path in the case of mounted applications - #1147.
• Fixed a cache invalidation bug when static files were deleted in certain circumstances - #1023.
• Improved memory usage of BaseHTTPMiddleware when handling large responses - #1012 fixed via #1157

Deprecated/removed

• Built-in GraphQL support via the GraphQLApp class has been deprecated and will be removed in a future release. Please see #619. GraphQL is not supported on Python 3.10.
• The executor parameter to GraphQLApp was removed. Use executor_class instead.
• The workers parameter to WSGIMiddleware was removed. This hasn't had any effect since Starlette v0.6.3.

Version 0.14.2

Fixed

• Fixed ServerErrorMiddleware compatibility with Python 3.9.1/3.8.7 when debug mode is enabled - #1132.
• Fixed unclosed socket ResourceWarnings when using the TestClient with WebSocket endpoints - #1132.
• Improved detection of async endpoints wrapped in functools.partial on Python 3.8+ - #1106.

Version 0.14.1

Removed

• UJSONResponse was removed (this change was intended to be included in 0.14.0). Please see the documentation for how to implement responses using custom JSON serialization - #1074.

Version 0.14.0

Added

• Starlette now officially supports Python3.9.
• In StreamingResponse, allow custom async iterator such as objects from classes implementing __aiter__.
• Allow usage of functools.partial async handlers in Python versions 3.6 and 3.7.
• Add 418 I'm A Teapot status code.

Changed

• Create tasks from handler coroutines before sending them to asyncio.wait.
• Use format_exception instead of format_tb in ServerErrorMiddleware's debug responses.
• Be more lenient with handler arguments when using the requires decorator.

Version 0.13.8

• Revert Queue(maxsize=1) fix for BaseHTTPMiddleware middleware classes and streaming responses.

• The StaticFiles constructor now allows pathlib.Path in addition to strings for its directory argument.

Version 0.13.7

• Fix high memory usage when using BaseHTTPMiddleware middleware classes and streaming responses.