On behalf of Twisted Matrix Laboratories, I am honoured to announce the release of Twisted 19.2! The highlights of this release are: * twisted.web.client.HostnameCachingHTTPSPolicy was added as a new contextFactory option. This reduces the performance overhead for making many TLS connections to the same host. * twisted.conch.ssh.keys can now read private keys in the new "openssh-key-v1" format, introduced in OpenSSH 6.5 and made the default in OpenSSH 7.8. * The sample code in the "Twisted Web In 60 Seconds" tutorial runs on Python 3. * DeferredLock and DeferredSemaphore can be used as asynchronous context managers on Python 3.5+. * twisted.internet.ssl.CertificateOptions now uses 32 random bytes instead of an MD5 hash for the ssl session identifier context. * twisted.python.failure.Failure.getTracebackObject now returns traceback objects whose frames can be passed into traceback.print_stack for better debugging of where the exception came from. * Much more! 20+ tickets closed overall. You can find the downloads at https://pypi.python.org/pypi/Twisted (or alternatively http://twistedmatrix.com/trac/wiki/Downloads). The NEWS file is also available at https://github.com/twisted/twisted/blob/twisted-19.2.0/NEWS.rst. 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! Twisted Regards, Amber Brown (HawkOwl)