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Date: Wed, 17 Mar 2021 02:43:01 -0400
From: Eric Wong <e@80x24.org>
To: ruby-talk@ruby-lang.org, unicorn-public@yhbt.net
Cc: Dirkjan Bussink <dbussink@github.com>,
	John Crepezzi <seejohnrun@github.com>,
	Kevin Sawicki <kevinsawicki@github.com>
Subject: [ANN] unicorn 6.0.0 - Rack HTTP server for fast clients and *nix
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unicorn is an HTTP server for Rack applications designed to only serve
fast clients on low-latency, high-bandwidth connections and take
advantage of features in Unix/Unix-like kernels.  Slow clients should
only be served by placing a reverse proxy capable of fully buffering
both the the request and response in between unicorn and slow clients.

.onion URLs below are available for Tor users and can reduce
our operating costs:

* https://yhbt.net/unicorn/
  http://unicorn.ou63pmih66umazou.onion/
* public list: unicorn-public@yhbt.net
* mail archives: https://yhbt.net/unicorn-public/
  http://ou63pmih66umazou.onion/unicorn-public/
* git clone https://yhbt.net/unicorn.git
  torsocks git clone http://ou63pmih66umazou.onion/unicorn.git
* https://yhbt.net/unicorn/NEWS.atom.xml
  http://unicorn.ou63pmih66umazou.onion/NEWS.atom.xml
* nntps://news.public-inbox.org/inbox.comp.lang.ruby.unicorn
  nntp://ou63pmih66umazou.onion/inbox.comp.lang.ruby.unicorn
  imaps://news.public-inbox.org/inbox.comp.lang.ruby.unicorn.0
  imap://ou63pmih66umazou.onion/inbox.comp.lang.ruby.unicorn.0

Changes:

    unicorn 6.0.0 - no more recycling Rack env
    
    This release allocates a new Rack `env' hash for every request.
    This is done for safety with internally-(thread|event)-using Rack
    apps which expect to use `env' after the normal Rack response is
    complete, but without relying on rack.hijack[1].  Thanks to
    Dirkjan Bussink <d.bussink@gmail.com> for the patch:
    
      https://yhbt.net/unicorn-public/66A68DD8-83EF-4C7A-80E8-3F1F7AB31670@github.com/
    
    The major version is bumped since:
    
    1) there are performance regressions for some simple Rack apps
    
    2) unsupported 3rd-party monkey patches which previously
       relied on this behavior may be broken (our version of
       OobGC was).
    
    The test suite is also more reliable on multi-core systems
    and Ruby 3.x.