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74 lines
3.0 KiB
ReStructuredText
74 lines
3.0 KiB
ReStructuredText
=========
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Changelog
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=========
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23.0.0 - unreleased
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===================
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* minor docs fixes (:pr:`3217`, :pr:`3089`, :pr:`3167`)
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* worker_class parameter accepts a class (:pr:`3079`)
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* fix deadlock if request terminated during chunked parsing (:pr:`2688`)
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* permit receiving Transfer-Encodings: compress, deflate, gzip (:pr:`3261`)
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* permit Transfer-Encoding headers specifying multiple encodings. note: no parameters, still (:pr:`3261`)
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* sdist generation now explicitly excludes sphinx build folder (:pr:`3257`)
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* decode bytes-typed status (as can be passed by gevent) as utf-8 instead of raising `TypeError` (:pr:`2336`)
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* raise correct Exception when encounting invalid chunked requests (:pr:`3258`)
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** Breaking changes **
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* refuse requests where the uri field is empty (:pr:`3255`)
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* refuse requests with invalid CR/LR/NUL in heade field values (:pr:`3253`)
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* remove temporary `--tolerate-dangerous-framing` switch from 22.0 (:pr:`3260`)
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* If any of the breaking changes affect you, be aware that now refused requests can post a security problem, especially so in setups involving request pipe-lining and/or proxies.
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22.0.0 - 2024-04-17
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===================
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- use `utime` to notify workers liveness
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- migrate setup to pyproject.toml
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- fix numerous security vulnerabilities in HTTP parser (closing some request smuggling vectors)
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- parsing additional requests is no longer attempted past unsupported request framing
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- on HTTP versions < 1.1 support for chunked transfer is refused (only used in exploits)
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- requests conflicting configured or passed SCRIPT_NAME now produce a verbose error
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- Trailer fields are no longer inspected for headers indicating secure scheme
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- support Python 3.12
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** Breaking changes **
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- minimum version is Python 3.7
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- the limitations on valid characters in the HTTP method have been bounded to Internet Standards
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- requests specifying unsupported transfer coding (order) are refused by default (rare)
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- HTTP methods are no longer casefolded by default (IANA method registry contains none affected)
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- HTTP methods containing the number sign (#) are no longer accepted by default (rare)
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- HTTP versions < 1.0 or >= 2.0 are no longer accepted by default (rare, only HTTP/1.1 is supported)
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- HTTP versions consisting of multiple digits or containing a prefix/suffix are no longer accepted
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- HTTP header field names Gunicorn cannot safely map to variables are silently dropped, as in other software
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- HTTP headers with empty field name are refused by default (no legitimate use cases, used in exploits)
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- requests with both Transfer-Encoding and Content-Length are refused by default (such a message might indicate an attempt to perform request smuggling)
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- empty transfer codings are no longer permitted (reportedly seen with really old & broken proxies)
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** SECURITY **
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- fix CVE-2024-1135
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History
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=======
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.. toctree::
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:titlesonly:
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2023-news
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2021-news
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2020-news
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2019-news
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2018-news
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2017-news
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2016-news
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2015-news
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2014-news
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2013-news
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2012-news
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2011-news
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2010-news
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