[Twisted-Python] Twisted 19.2.0rc1 Release Candidate Announcement

[Glyph]

Let's do it.

> On Mar 4, 2019, at 3:14 PM, Amber Brown <hawkowl at atleastfornow.net> wrote:
> 
> Hi Tom,
> 
> Thanks for letting me know. 
> 
> I propose we update this dependency and do an rc2, would anyone have an objection to that?
> 
> - Amber
> 
> On Mon., 4 Mar. 2019, 15:12 Tom Most, <twm at freecog.net <mailto:twm at freecog.net>> wrote:
> Hi Amber,
> 
> I wanted to make sure you've seen this: https://twistedmatrix.com/trac/ticket/9592 <https://twistedmatrix.com/trac/ticket/9592>
> 
> Twisted now references a symbol not present in its minimal crypography requirement.
> 
> ---Tom
> 
> 
> On February 24, 2019 11:19:28 AM PST, Amber Brown <hawkowl at atleastfornow.net <mailto:hawkowl at atleastfornow.net>> wrote:
> Hello from PyCascades! Straight from the Pacific North-West, a new 
> Twisted release candidate!
> 
> In this release, there is:
> 
> - 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 get the tarball and the NEWS file at 
> https://twistedmatrix.com/Releases/rc/19.2.0rc1 <https://twistedmatrix.com/Releases/rc/19.2.0rc1>/ , or you can try it out 
> from PyPI:
> 
>      python -m pip install Twisted==19.2.0rc1
> 
> Please test it, and let me know how your applications fare, good or bad! 
> If nothing comes up, 19.2 will release in a week.
> 
> Twisted regards,
> 
> Amber Brown (hawkowl)
> 
> 
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