0.17.0

Added

• Add httpx.MockTransport(), allowing to mock out a transport using pre-determined responses. (Pull #1401, Pull #1449)
• Add httpx.HTTPTransport() and httpx.AsyncHTTPTransport() default transports. (Pull #1399)
• Add mount API support, using httpx.Client(mounts=...). (Pull #1362)
• Add chunk_size parameter to iter_raw(), iter_bytes(), iter_text(). (Pull #1277)
• Add keepalive_expiry parameter to httpx.Limits() configuration. (Pull #1398)
• Add repr to httpx.Cookies to display available cookies. (Pull #1411)
• Add support for params=<tuple> (previously only params=<list> was supported). (Pull #1426)

Fixed

• Add missing raw_path to ASGI scope. (Pull #1357)
• Tweak create_ssl_context defaults to use trust_env=True. (Pull #1447)
• Properly URL-escape WSGI PATH_INFO. (Pull #1391)
• Properly set default ports in WSGI transport. (Pull #1469)
• Properly encode slashes when using base_url. (Pull #1407)
• Properly map exceptions in request.aclose(). (Pull #1465)