<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><div class="">On behalf of Twisted Matrix Laboratories, I am honoured to announce the release of Twisted 17.1!</div><div class=""><br class=""></div><div class="">The highlights of this release are:</div></div><div class=""><br class=""></div><div class="">- twisted.web.client.Agent now supports IPv6! It's also now the primary web client in Twisted, with twisted.web.client.getPage being deprecated in favour of it and Treq.</div><div class="">- twisted.web.server has had many cleanups revolving around timing out inactive clients.</div><div class="">- twisted.internet.ssl.CertificateOptions has had its `method` argument deprecated, in favour of the new raiseMinimumTo, lowerMaximumSecurityTo, and insecurelyLowerMinimumTo arguments, which take TLSVersion arguments. This allows you to better give a range of versions of TLS you wish to negotiate, rather than forcing yourself to any one version.</div><div class="">- twisted.internet.ssl.CertificateOptions will use OpenSSL's MODE_RELEASE_BUFFERS, which will let it free unused memory that was held by idle TLS connections.</div><div class="">- You can now call the new twist runner with `python -m twisted`.</div><div class="">- twisted.conch.ssh now has some ECDH key exchange support and supports `hmac-sha2-384`.</div><div class="">- Better Unicode support in twisted.internet.reactor.spawnProcess, especially on Windows on Python 3.6.</div><div class="">- More Python 3 porting in Conch, and more under-the-hood changes to facilitate a Twisted-wide jump to new-style classes only on Python 2 in 2018/2019. This release has also been tested on Python 3.6 on Linux.</div><div class="">- Lots of deprecated code removals, to make a sleeker, less confusing Twisted.</div><div class="">- 60+ closed tickets.</div><div class=""><br class=""></div><div class="">For more information, check the NEWS file (link provided below).<br class=""><br class="">You can find the downloads at <<a href="https://pypi.python.org/pypi/Twisted" class="">https://pypi.python.org/pypi/Twisted</a>> (or alternatively <<a href="http://twistedmatrix.com/trac/wiki/Downloads" class="">http://twistedmatrix.com/trac/wiki/Downloads</a>>). The NEWS file is also available at <<a href="https://github.com/twisted/twisted/blob/twisted-17.1.0/NEWS" class="">https://github.com/twisted/twisted/blob/twisted-17.1.0/NEWS</a>>.<br class=""><br class="">Many thanks to everyone who had a part in this release - the supporters of the Twisted Software Foundation, the developers who contributed code as well as documentation, and all the people building great things with Twisted!<br class=""><br class="">Twisted Regards,<br class="">Amber Brown (HawkOwl)</div></body></html>