urllib3 1.26.0

on Python PyPI

⚠️ IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

• Added support for HTTPS proxies contacting HTTPS servers (Pull #1923, Pull #1806)

• Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that
  still wish to use TLS earlier than 1.2 without a deprecation warning
  should opt-in explicitly by setting ssl_version=ssl.PROTOCOL_TLSv1_1 (Pull #2002)
  Starting in urllib3 v2.0: Connections that receive a DeprecationWarning will fail

• Deprecated Retry options Retry.DEFAULT_METHOD_WHITELIST, Retry.DEFAULT_REDIRECT_HEADERS_BLACKLIST
  and Retry(method_whitelist=...) in favor of Retry.DEFAULT_ALLOWED_METHODS,
  Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT, and Retry(allowed_methods=...)
  (Pull #2000) Starting in urllib3 v2.0: Deprecated options will be removed

• Added default User-Agent header to every request (Pull #1750)

• Added urllib3.util.SKIP_HEADER for skipping User-Agent, Accept-Encoding,
  and Host headers from being automatically emitted with requests (Pull #2018)

• Collapse transfer-encoding: chunked request data and framing into
  the same socket.send() call (Pull #1906)

• Send http/1.1 ALPN identifier with every TLS handshake by default (Pull #1894)

• Properly terminate SecureTransport connections when CA verification fails (Pull #1977)

• Don't emit an SNIMissingWarning when passing server_hostname=None
  to SecureTransport (Pull #1903)

• Disabled requesting TLSv1.2 session tickets as they weren't being used by urllib3 (Pull #1970)

• Suppress BrokenPipeError when writing request body after the server
  has closed the socket (Pull #1524)

• Wrap ssl.SSLError that can be raised from reading a socket (e.g. "bad MAC")
  into an urllib3.exceptions.SSLError (Pull #1939)