urllib3/urllib3 (urllib3)
### [`v1.26.5`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1265-2021-05-26)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.4...1.26.5)
\===================
- Fixed deprecation warnings emitted in Python 3.10.
- Updated vendored `six` library to 1.16.0.
- Improved performance of URL parser when splitting
the authority component.
### [`v1.26.4`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1264-2021-03-15)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.3...1.26.4)
\===================
- Changed behavior of the default `SSLContext` when connecting to HTTPS proxy
during HTTPS requests. The default `SSLContext` now sets `check_hostname=True`.
### [`v1.26.3`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1263-2021-01-26)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.2...1.26.3)
\===================
- Fixed bytes and string comparison issue with headers (Pull [#2141](https://redirect.github.com/urllib3/urllib3/issues/2141))
- Changed `ProxySchemeUnknown` error message to be
more actionable if the user supplies a proxy URL without
a scheme. (Pull [#2107](https://redirect.github.com/urllib3/urllib3/issues/2107))
### [`v1.26.2`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12620-2024-08-29)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.1...1.26.2)
\====================
- Fixed a crash where certain standard library hash functions were absent in
FIPS-compliant environments.
(`#3432 `\__)
- Replaced deprecated dash-separated setuptools entries in `setup.cfg`.
(`#3461 `\__)
- Took into account macOS setting `ECONNRESET` instead of `EPROTOTYPE` in
its newer versions.
(`#3416 `\__)
- Backported changes to our tests and CI configuration from v2.x to support
testing with CPython 3.12 and 3.13.
(`#3436 `\__)
### [`v1.26.1`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12619-2024-06-17)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.0...1.26.1)
\====================
- Added the `Proxy-Authorization` header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via `Retry.remove_headers_on_redirect`.
- Fixed handling of OpenSSL 3.2.0 new error message for misconfiguring an HTTP proxy as HTTPS. (`#3405 `\__)
### [`v1.26.0`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1260-2020-11-10)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.11...1.26.0)
\===================
- **NOTE: 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](https://redirect.github.com/urllib3/urllib3/issues/1923), Pull [#1806](https://redirect.github.com/urllib3/urllib3/issues/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](https://redirect.github.com/urllib3/urllib3/issues/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](https://redirect.github.com/urllib3/urllib3/issues/2000)) **Starting in urllib3 v2.0: Deprecated options will be removed**
- Added default `User-Agent` header to every request (Pull [#1750](https://redirect.github.com/urllib3/urllib3/issues/1750))
- Added `urllib3.util.SKIP_HEADER` for skipping `User-Agent`, `Accept-Encoding`,
and `Host` headers from being automatically emitted with requests (Pull [#2018](https://redirect.github.com/urllib3/urllib3/issues/2018))
- Collapse `transfer-encoding: chunked` request data and framing into
the same `socket.send()` call (Pull [#1906](https://redirect.github.com/urllib3/urllib3/issues/1906))
- Send `http/1.1` ALPN identifier with every TLS handshake by default (Pull [#1894](https://redirect.github.com/urllib3/urllib3/issues/1894))
- Properly terminate SecureTransport connections when CA verification fails (Pull [#1977](https://redirect.github.com/urllib3/urllib3/issues/1977))
- Don't emit an `SNIMissingWarning` when passing `server_hostname=None`
to SecureTransport (Pull [#1903](https://redirect.github.com/urllib3/urllib3/issues/1903))
- Disabled requesting TLSv1.2 session tickets as they weren't being used by urllib3 (Pull [#1970](https://redirect.github.com/urllib3/urllib3/issues/1970))
- Suppress `BrokenPipeError` when writing request body after the server
has closed the socket (Pull [#1524](https://redirect.github.com/urllib3/urllib3/issues/1524))
- Wrap `ssl.SSLError` that can be raised from reading a socket (e.g. "bad MAC")
into an `urllib3.exceptions.SSLError` (Pull [#1939](https://redirect.github.com/urllib3/urllib3/issues/1939))
### [`v1.25.11`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12511-2020-10-19)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.10...1.25.11)
\====================
- Fix retry backoff time parsed from `Retry-After` header when given
in the HTTP date format. The HTTP date was parsed as the local timezone
rather than accounting for the timezone in the HTTP date (typically
UTC) (Pull [#1932](https://redirect.github.com/urllib3/urllib3/issues/1932), Pull [#1935](https://redirect.github.com/urllib3/urllib3/issues/1935), Pull [#1938](https://redirect.github.com/urllib3/urllib3/issues/1938), Pull [#1949](https://redirect.github.com/urllib3/urllib3/issues/1949))
- Fix issue where an error would be raised when the `SSLKEYLOGFILE`
environment variable was set to the empty string. Now `SSLContext.keylog_file`
is not set in this situation (Pull [#2016](https://redirect.github.com/urllib3/urllib3/issues/2016))
### [`v1.25.10`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12510-2020-07-22)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.9...1.25.10)
\====================
- Added support for `SSLKEYLOGFILE` environment variable for
logging TLS session keys with use with programs like
Wireshark for decrypting captured web traffic (Pull [#1867](https://redirect.github.com/urllib3/urllib3/issues/1867))
- Fixed loading of SecureTransport libraries on macOS Big Sur
due to the new dynamic linker cache (Pull [#1905](https://redirect.github.com/urllib3/urllib3/issues/1905))
- Collapse chunked request bodies data and framing into one
call to `send()` to reduce the number of TCP packets by 2-4x (Pull [#1906](https://redirect.github.com/urllib3/urllib3/issues/1906))
- Don't insert `None` into `ConnectionPool` if the pool
was empty when requesting a connection (Pull [#1866](https://redirect.github.com/urllib3/urllib3/issues/1866))
- Avoid `hasattr` call in `BrotliDecoder.decompress()` (Pull [#1858](https://redirect.github.com/urllib3/urllib3/issues/1858))
### [`v1.25.9`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1259-2020-04-16)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.8...1.25.9)
\===================
- Added `InvalidProxyConfigurationWarning` which is raised when
erroneously specifying an HTTPS proxy URL. urllib3 doesn't currently
support connecting to HTTPS proxies but will soon be able to
and we would like users to migrate properly without much breakage.
See `this GitHub issue `\_
for more information on how to fix your proxy config. (Pull [#1851](https://redirect.github.com/urllib3/urllib3/issues/1851))
- Drain connection after `PoolManager` redirect (Pull [#1817](https://redirect.github.com/urllib3/urllib3/issues/1817))
- Ensure `load_verify_locations` raises `SSLError` for all backends (Pull [#1812](https://redirect.github.com/urllib3/urllib3/issues/1812))
- Rename `VerifiedHTTPSConnection` to `HTTPSConnection` (Pull [#1805](https://redirect.github.com/urllib3/urllib3/issues/1805))
- Allow the CA certificate data to be passed as a string (Pull [#1804](https://redirect.github.com/urllib3/urllib3/issues/1804))
- Raise `ValueError` if method contains control characters (Pull [#1800](https://redirect.github.com/urllib3/urllib3/issues/1800))
- Add `__repr__` to `Timeout` (Pull [#1795](https://redirect.github.com/urllib3/urllib3/issues/1795))
### [`v1.25.8`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1258-2020-01-20)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.7...1.25.8)
\===================
- Drop support for EOL Python 3.4 (Pull [#1774](https://redirect.github.com/urllib3/urllib3/issues/1774))
- Optimize \_encode_invalid_chars (Pull [#1787](https://redirect.github.com/urllib3/urllib3/issues/1787))
### [`v1.25.7`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1257-2019-11-11)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.6...1.25.7)
\===================
- Preserve `chunked` parameter on retries (Pull [#1715](https://redirect.github.com/urllib3/urllib3/issues/1715), Pull [#1734](https://redirect.github.com/urllib3/urllib3/issues/1734))
- Allow unset `SERVER_SOFTWARE` in App Engine (Pull [#1704](https://redirect.github.com/urllib3/urllib3/issues/1704), Issue [#1470](https://redirect.github.com/urllib3/urllib3/issues/1470))
- Fix issue where URL fragment was sent within the request target. (Pull [#1732](https://redirect.github.com/urllib3/urllib3/issues/1732))
- Fix issue where an empty query section in a URL would fail to parse. (Pull [#1732](https://redirect.github.com/urllib3/urllib3/issues/1732))
- Remove TLS 1.3 support in SecureTransport due to Apple removing support (Pull [#1703](https://redirect.github.com/urllib3/urllib3/issues/1703))
### [`v1.25.6`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1256-2019-09-24)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.5...1.25.6)
\===================
- Fix issue where tilde (`~`) characters were incorrectly
percent-encoded in the path. (Pull [#1692](https://redirect.github.com/urllib3/urllib3/issues/1692))
### [`v1.25.5`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1255-2019-09-19)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.4...1.25.5)
\===================
- Add mitigation for BPO-37428 affecting Python <3.7.4 and OpenSSL 1.1.1+ which
caused certificate verification to be enabled when using `cert_reqs=CERT_NONE`.
(Issue [#1682](https://redirect.github.com/urllib3/urllib3/issues/1682))
### [`v1.25.4`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1254-2019-09-19)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.3...1.25.4)
\===================
- Propagate Retry-After header settings to subsequent retries. (Pull [#1607](https://redirect.github.com/urllib3/urllib3/issues/1607))
- Fix edge case where Retry-After header was still respected even when
explicitly opted out of. (Pull [#1607](https://redirect.github.com/urllib3/urllib3/issues/1607))
- Remove dependency on `rfc3986` for URL parsing.
- Fix issue where URLs containing invalid characters within `Url.auth` would
raise an exception instead of percent-encoding those characters.
- Add support for `HTTPResponse.auto_close = False` which makes HTTP responses
work well with BufferedReaders and other `io` module features. (Pull [#1652](https://redirect.github.com/urllib3/urllib3/issues/1652))
- Percent-encode invalid characters in URL for `HTTPConnectionPool.request()` (Pull [#1673](https://redirect.github.com/urllib3/urllib3/issues/1673))
### [`v1.25.3`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1253-2019-05-23)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.2...1.25.3)
\===================
- Change `HTTPSConnection` to load system CA certificates
when `ca_certs`, `ca_cert_dir`, and `ssl_context` are
unspecified. (Pull [#1608](https://redirect.github.com/urllib3/urllib3/issues/1608), Issue [#1603](https://redirect.github.com/urllib3/urllib3/issues/1603))
- Upgrade bundled rfc3986 to v1.3.2. (Pull [#1609](https://redirect.github.com/urllib3/urllib3/issues/1609), Issue [#1605](https://redirect.github.com/urllib3/urllib3/issues/1605))
### [`v1.25.2`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1252-2019-04-28)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25.1...1.25.2)
\===================
- Change `is_ipaddress` to not detect IPvFuture addresses. (Pull [#1583](https://redirect.github.com/urllib3/urllib3/issues/1583))
- Change `parse_url` to percent-encode invalid characters within the
path, query, and target components. (Pull [#1586](https://redirect.github.com/urllib3/urllib3/issues/1586))
### [`v1.25.1`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12511-2020-10-19)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.25...1.25.1)
\====================
- Fix retry backoff time parsed from `Retry-After` header when given
in the HTTP date format. The HTTP date was parsed as the local timezone
rather than accounting for the timezone in the HTTP date (typically
UTC) (Pull [#1932](https://redirect.github.com/urllib3/urllib3/issues/1932), Pull [#1935](https://redirect.github.com/urllib3/urllib3/issues/1935), Pull [#1938](https://redirect.github.com/urllib3/urllib3/issues/1938), Pull [#1949](https://redirect.github.com/urllib3/urllib3/issues/1949))
- Fix issue where an error would be raised when the `SSLKEYLOGFILE`
environment variable was set to the empty string. Now `SSLContext.keylog_file`
is not set in this situation (Pull [#2016](https://redirect.github.com/urllib3/urllib3/issues/2016))
### [`v1.25`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12511-2020-10-19)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.24.3...1.25)
\====================
- Fix retry backoff time parsed from `Retry-After` header when given
in the HTTP date format. The HTTP date was parsed as the local timezone
rather than accounting for the timezone in the HTTP date (typically
UTC) (Pull [#1932](https://redirect.github.com/urllib3/urllib3/issues/1932), Pull [#1935](https://redirect.github.com/urllib3/urllib3/issues/1935), Pull [#1938](https://redirect.github.com/urllib3/urllib3/issues/1938), Pull [#1949](https://redirect.github.com/urllib3/urllib3/issues/1949))
- Fix issue where an error would be raised when the `SSLKEYLOGFILE`
environment variable was set to the empty string. Now `SSLContext.keylog_file`
is not set in this situation (Pull [#2016](https://redirect.github.com/urllib3/urllib3/issues/2016))
### [`v1.24.3`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1243-2019-05-01)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.24.2...1.24.3)
\===================
- Apply fix for CVE-2019-9740. (Pull [#1591](https://redirect.github.com/urllib3/urllib3/issues/1591))
### [`v1.24.2`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1242-2019-04-17)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.24.1...1.24.2)
\===================
- Don't load system certificates by default when any other `ca_certs`, `ca_certs_dir` or
`ssl_context` parameters are specified.
- Remove Authorization header regardless of case when redirecting to cross-site. (Issue [#1510](https://redirect.github.com/urllib3/urllib3/issues/1510))
- Add support for IPv6 addresses in subjectAltName section of certificates. (Issue [#1269](https://redirect.github.com/urllib3/urllib3/issues/1269))
### [`v1.24.1`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1241-2018-11-02)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.24...1.24.1)
\===================
- Remove quadratic behavior within `GzipDecoder.decompress()` (Issue [#1467](https://redirect.github.com/urllib3/urllib3/issues/1467))
- Restored functionality of `ciphers` parameter for `create_urllib3_context()`. (Issue [#1462](https://redirect.github.com/urllib3/urllib3/issues/1462))
### [`v1.24`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1243-2019-05-01)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.23...1.24)
\===================
- Apply fix for CVE-2019-9740. (Pull [#1591](https://redirect.github.com/urllib3/urllib3/issues/1591))
### [`v1.23`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#123-2018-06-04)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.22...1.23)
\=================
- Allow providing a list of headers to strip from requests when redirecting
to a different host. Defaults to the `Authorization` header. Different
headers can be set via `Retry.remove_headers_on_redirect`. (Issue [#1316](https://redirect.github.com/urllib3/urllib3/issues/1316))
- Fix `util.selectors._fileobj_to_fd` to accept `long` (Issue [#1247](https://redirect.github.com/urllib3/urllib3/issues/1247)).
- Dropped Python 3.3 support. (Pull [#1242](https://redirect.github.com/urllib3/urllib3/issues/1242))
- Put the connection back in the pool when calling stream() or read_chunked() on
a chunked HEAD response. (Issue [#1234](https://redirect.github.com/urllib3/urllib3/issues/1234))
- Fixed pyOpenSSL-specific ssl client authentication issue when clients
attempted to auth via certificate + chain (Issue [#1060](https://redirect.github.com/urllib3/urllib3/issues/1060))
- Add the port to the connectionpool connect print (Pull [#1251](https://redirect.github.com/urllib3/urllib3/issues/1251))
- Don't use the `uuid` module to create multipart data boundaries. (Pull [#1380](https://redirect.github.com/urllib3/urllib3/issues/1380))
- `read_chunked()` on a closed response returns no chunks. (Issue [#1088](https://redirect.github.com/urllib3/urllib3/issues/1088))
- Add Python 2.6 support to `contrib.securetransport` (Pull [#1359](https://redirect.github.com/urllib3/urllib3/issues/1359))
- Added support for auth info in url for SOCKS proxy (Pull [#1363](https://redirect.github.com/urllib3/urllib3/issues/1363))
### [`v1.22`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#122-2017-07-20)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.21.1...1.22)
\=================
- Fixed missing brackets in `HTTP CONNECT` when connecting to IPv6 address via
IPv6 proxy. (Issue [#1222](https://redirect.github.com/urllib3/urllib3/issues/1222))
- Made the connection pool retry on `SSLError`. The original `SSLError`
is available on `MaxRetryError.reason`. (Issue [#1112](https://redirect.github.com/urllib3/urllib3/issues/1112))
- Drain and release connection before recursing on retry/redirect. Fixes
deadlocks with a blocking connectionpool. (Issue [#1167](https://redirect.github.com/urllib3/urllib3/issues/1167))
- Fixed compatibility for cookiejar. (Issue [#1229](https://redirect.github.com/urllib3/urllib3/issues/1229))
- pyopenssl: Use vendored version of `six`. (Issue [#1231](https://redirect.github.com/urllib3/urllib3/issues/1231))
### [`v1.21.1`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1211-2017-05-02)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.21...1.21.1)
\===================
- Fixed SecureTransport issue that would cause long delays in response body
delivery. (Pull [#1154](https://redirect.github.com/urllib3/urllib3/issues/1154))
- Fixed regression in 1.21 that threw exceptions when users passed the
`socket_options` flag to the `PoolManager`. (Issue [#1165](https://redirect.github.com/urllib3/urllib3/issues/1165))
- Fixed regression in 1.21 that threw exceptions when users passed the
`assert_hostname` or `assert_fingerprint` flag to the `PoolManager`.
(Pull [#1157](https://redirect.github.com/urllib3/urllib3/issues/1157))
### [`v1.21`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1211-2017-05-02)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.20...1.21)
\===================
- Fixed SecureTransport issue that would cause long delays in response body
delivery. (Pull [#1154](https://redirect.github.com/urllib3/urllib3/issues/1154))
- Fixed regression in 1.21 that threw exceptions when users passed the
`socket_options` flag to the `PoolManager`. (Issue [#1165](https://redirect.github.com/urllib3/urllib3/issues/1165))
- Fixed regression in 1.21 that threw exceptions when users passed the
`assert_hostname` or `assert_fingerprint` flag to the `PoolManager`.
(Pull [#1157](https://redirect.github.com/urllib3/urllib3/issues/1157))
### [`v1.20`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#120-2017-01-19)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.19.1...1.20)
\=================
- Added support for waiting for I/O using selectors other than select,
improving urllib3's behaviour with large numbers of concurrent connections.
(Pull [#1001](https://redirect.github.com/urllib3/urllib3/issues/1001))
- Updated the date for the system clock check. (Issue [#1005](https://redirect.github.com/urllib3/urllib3/issues/1005))
- ConnectionPools now correctly consider hostnames to be case-insensitive.
(Issue [#1032](https://redirect.github.com/urllib3/urllib3/issues/1032))
- Outdated versions of PyOpenSSL now cause the PyOpenSSL contrib module
to fail when it is injected, rather than at first use. (Pull [#1063](https://redirect.github.com/urllib3/urllib3/issues/1063))
- Outdated versions of cryptography now cause the PyOpenSSL contrib module
to fail when it is injected, rather than at first use. (Issue [#1044](https://redirect.github.com/urllib3/urllib3/issues/1044))
- Automatically attempt to rewind a file-like body object when a request is
retried or redirected. (Pull [#1039](https://redirect.github.com/urllib3/urllib3/issues/1039))
- Fix some bugs that occur when modules incautiously patch the queue module.
(Pull [#1061](https://redirect.github.com/urllib3/urllib3/issues/1061))
- Prevent retries from occurring on read timeouts for which the request method
was not in the method whitelist. (Issue [#1059](https://redirect.github.com/urllib3/urllib3/issues/1059))
- Changed the PyOpenSSL contrib module to lazily load idna to avoid
unnecessarily bloating the memory of programs that don't need it. (Pull
[#1076](https://redirect.github.com/urllib3/urllib3/issues/1076))
- Add support for IPv6 literals with zone identifiers. (Pull [#1013](https://redirect.github.com/urllib3/urllib3/issues/1013))
- Added support for socks5h:// and socks4a:// schemes when working with SOCKS
proxies, and controlled remote DNS appropriately. (Issue [#1035](https://redirect.github.com/urllib3/urllib3/issues/1035))
### [`v1.19.1`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1191-2016-11-16)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.19...1.19.1)
\===================
- Fixed AppEngine import that didn't function on Python 3.5. (Pull [#1025](https://redirect.github.com/urllib3/urllib3/issues/1025))
### [`v1.19`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1191-2016-11-16)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.18.1...1.19)
\===================
- Fixed AppEngine import that didn't function on Python 3.5. (Pull [#1025](https://redirect.github.com/urllib3/urllib3/issues/1025))
### [`v1.18.1`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1181-2016-10-27)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.18...1.18.1)
\===================
- CVE-2016-9015. Users who are using urllib3 version 1.17 or 1.18 along with
PyOpenSSL injection and OpenSSL 1.1.0 *must* upgrade to this version. This
release fixes a vulnerability whereby urllib3 in the above configuration
would silently fail to validate TLS certificates due to erroneously setting
invalid flags in OpenSSL's `SSL_CTX_set_verify` function. These erroneous
flags do not cause a problem in OpenSSL versions before 1.1.0, which
interprets the presence of any flag as requesting certificate validation.
There is no PR for this patch, as it was prepared for simultaneous disclosure
and release. The master branch received the same fix in Pull [#1010](https://redirect.github.com/urllib3/urllib3/issues/1010).
### [`v1.18`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1181-2016-10-27)
[Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.17...1.18)
\===================
- CVE-2016-9015. Users who are using urllib3 version 1.17 or 1.18 along with
PyOpenSSL injection and OpenSSL 1.1.0 *must* upgrade to this version. This
release fixes a vulnerability whereby urllib3 in the above configuration
would silently fail to validate TLS certificates due to erroneously setting
invalid flags in OpenSSL's `SSL_CTX_set_verify` function. These erroneous
flags do not cause a problem in OpenSSL versions before 1.1.0, which
interprets the presence of any flag as requesting certificate validation.
There is no PR for this patch, as it was prepared for simultaneous disclosure
and release. The master branch received the same fix in Pull [#1010](https://redirect.github.com/urllib3/urllib3/issues/1010).
[ ] If you want to rebase/retry this PR, check this box
This PR contains the following updates:
==1.17
->==1.26.5
By merging this PR, the below issues will be automatically resolved and closed:
Release Notes
urllib3/urllib3 (urllib3)
### [`v1.26.5`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1265-2021-05-26) [Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.4...1.26.5) \=================== - Fixed deprecation warnings emitted in Python 3.10. - Updated vendored `six` library to 1.16.0. - Improved performance of URL parser when splitting the authority component. ### [`v1.26.4`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1264-2021-03-15) [Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.3...1.26.4) \=================== - Changed behavior of the default `SSLContext` when connecting to HTTPS proxy during HTTPS requests. The default `SSLContext` now sets `check_hostname=True`. ### [`v1.26.3`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#1263-2021-01-26) [Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.2...1.26.3) \=================== - Fixed bytes and string comparison issue with headers (Pull [#2141](https://redirect.github.com/urllib3/urllib3/issues/2141)) - Changed `ProxySchemeUnknown` error message to be more actionable if the user supplies a proxy URL without a scheme. (Pull [#2107](https://redirect.github.com/urllib3/urllib3/issues/2107)) ### [`v1.26.2`](https://redirect.github.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12620-2024-08-29) [Compare Source](https://redirect.github.com/urllib3/urllib3/compare/1.26.1...1.26.2) \==================== - Fixed a crash where certain standard library hash functions were absent in FIPS-compliant environments. (`#3432