2.2.1 (2024-02-16)

- Fixed issue where ``InsecureRequestWarning`` was emitted for HTTPS connections when using Emscripten. (`#3331 <https://github.com/urllib3/urllib3/issues/3331>`__)

- Fixed ``HTTPConnectionPool.urlopen`` to stop automatically casting non-proxy headers to ``HTTPHeaderDict``. This change was premature as it did not apply to proxy headers and ``HTTPHeaderDict`` does not handle byte header values correctly yet. (`#3343 <https://github.com/urllib3/urllib3/issues/3343>`__)

- Changed ``ProtocolError`` to ``InvalidChunkLength`` when response terminates before the chunk length is sent. (`#2860 <https://github.com/urllib3/urllib3/issues/2860>`__)

- Changed ``ProtocolError`` to be more verbose on incomplete reads with excess content. (`#3261 <https://github.com/urllib3/urllib3/issues/3261>`__)

__version__ = "2.2.1"