condition that existed when creating a new HTTPChannel. See https://github.com/Pylons/waitress/pull/435 and https://github.com/Pylons/waitress/issues/418 With thanks to Dylan Jay and Dieter Maurer for their header values before passing them to the WSGI environ. See https://github.com/Pylons/waitress/pull/434 and https://github.com/Pylons/waitress/issues/432 3.0.0 (2024-02-04) Rename "master" git branch to "main" server. See https://github.com/Pylons/waitress/pull/399 Fixed testing of vendored asyncore code to not rely on particular naming for errno's. See https://github.com/Pylons/waitress/pull/397 HTTP Request

waitress Documentation Release 3.0.1 Pylons Project Developers June 08, 2024 CONTENTS 1 Extended Documentation 3 2 Change History 21 3 3.0.1 (unreleased) 23 4 3.0.0 (2024-02-04) 25 5 2.1.2 27 condition that existed when creating a new HTTPChannel. See https://github.com/Pylons/waitress/pull/435 and https: //github.com/Pylons/waitress/issues/418 With thanks to Dylan Jay and Dieter Maurer for their header values before passing them to the WSGI environ. See https://github.com/Pylons/ waitress/pull/434 and https://github.com/Pylons/waitress/issues/432 23 waitress Documentation, Release 3.0.1 24 Chapter

desync/HTTP request smuggling. Thanks to Zhang Zeyu for reporting this issue. See https://github.com/Pylons/waitress/security/advisories/GHSA-4f7p-27jc-3c36 Waitress now validates that the chunk length is desync/HTTP request smuggling. Thanks to Zhang Zeyu for reporting this issue. See https://github.com/Pylons/waitress/security/advisories/GHSA-4f7p-27jc-3c36 Waitress now validates that the Content-Length desync/HTTP request smuggling Thanks to Zhang Zeyu for reporting this issue. See https://github.com/Pylons/waitress/security/advisories/GHSA-4f7p-27jc- 3c36 2.1.0 Python Version Support Python 3.6 is no

waitress Documentation Release 2.1.2 Pylons Project Developers May 30, 2022 Contents 1 Extended Documentation 3 2 Change History 21 3 2.1.2 23 4 2.1.1 25 5 2.1.0 27 6 2.0.0 (2021-03-07) 29 7 properly encode unicode thereby causing another error during error handling. See https://github.com/Pylons/waitress/pull/378 • Header length checking had a calculation that was done incorrectly when the corrected, and no longer will Waitress send back a 413 Request Entity Too Large. See https://github.com/Pylons/waitress/pull/376 3.2 Security Bugfix • in 2.1.0 a new feature was introduced that allowed the

implement things like range requests for example See https://github.com/Pylons/waitress/issues/359 and https://github.com/Pylons/waitress/pull/363 In Python 3 OSError is no longer subscriptable, this attempting to loop to find an socket that would work for use in the trigger. See https://github.com/Pylons/waitress/pull/361 Fixed an issue whereby BytesIO objects were not properly closed, and thereby would potential for random memory spikes/memory issues, see https://github.com/Pylons/waitress/pull/358 and https://github.com/Pylons/waitress/issues/357 . With thanks to Florian Schulze for testing/vaidating

waitress Documentation Release 2.1.1 Pylons Project Developers March 16, 2022 Contents 1 Extended Documentation 3 2 Change History 21 3 2.1.1 23 4 2.1.0 25 5 2.0.0 (2021-03-07) 27 6 1.4.4 (2020-06-01) desync/HTTP request smuggling. Thanks to Zhang Zeyu for reporting this issue. See https://github.com/Pylons/waitress/security/advisories/GHSA-4f7p-27jc-3c36 • Waitress now validates that the chunk length desync/HTTP request smuggling. Thanks to Zhang Zeyu for reporting this issue. See https://github.com/Pylons/waitress/security/ advisories/GHSA-4f7p-27jc-3c36 • Waitress now validates that the Content-Length

waitress Documentation Release 1.4.3 Pylons Project Developers February 03, 2020 Contents 1 Extended Documentation 3 2 Change History 19 3 1.4.3 (2020-02-02) 21 4 1.4.2 (2020-01-02) 23 5 1.4.1 and CPU usage going to a 100%. This was reported by Fil Zembowicz to the Pylons Project. Please see https://github.com/Pylons/waitress/ security/advisories/GHSA-73m2-3pwg-5fgc for more information. 21 the extra test cases. Please see the security advisory for more information: https://github.com/Pylons/waitress/security/advisories/ GHSA-m5ff-3wj3-8ph4 CVE-ID: CVE-2019-16789 4.2 Bugfixes • Updated

potential header field-name confusion, it should have sent back a 400 Bad Request. See https://github.com/Pylons/waitress/issues/273 Security Fixes Waitress implemented a "MAY" part of the RFC7230 (https://tools environment that contains //testing/whatever as required. See https://github.com/Pylons/waitress/issues/260 and https://github.com/Pylons/waitress/pull/261 1.3.0 (2019-04-22) Deprecations The send_bytes adjustment adjustment now defaults to 1 and is deprecated pending removal in a future release. and https://github.com/Pylons/waitress/pull/246 Features Add a new outbuf_high_watermark adjustment which is used to apply backpressure

waitress Documentation Release 1.3.1 Pylons Project Developers August 27, 2019 Contents 1 Extended Documentation 3 2 Change History 19 3 1.3.1 (2019-08-27) 21 4 1.3.0 (2019-04-22) 23 5 1.2.1 (2019-01-25) environment that contains //testing/whatever as required. See https://github.com/Pylons/waitress/issues/260 and https://github. com/Pylons/waitress/pull/261 21 waitress Documentation, Release 1.3.1 22 Chapter now defaults to 1 and is deprecated pending removal in a future release. and https://github.com/Pylons/waitress/pull/246 4.2 Features • Add a new outbuf_high_watermark adjustment which is used to apply

lowercase HTTP verbs. This change was made to fall in line with most HTTP servers. See https://github.com/Pylons/waitress/pull/170 When receiving non-ascii bytes in the request URL, waitress will no longer abruptly the connection, instead returning a 400 Bad Request. See https://github.com/Pylons/waitress/pull/162 and https://github.com/Pylons/waitress/issues/64 1.0.2 (2017-02-04) Features Python 3.6 is now officially asking for IP address instead of reverse DNS hostname. See https://github.com/Pylons/waitress/issues/149 and https://github.com/Pylons/waitress/pull/153 1.0.1 (2016-10-22) Bugfixes IPv6 support on Windows