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    <title>Nine Nines: Cowboy 2.0 release candidate 2</title>

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<article class="blog_item">
<header>
	<h1 class="lined-header"><span>Cowboy 2.0 release candidate 2</span></h1>
	<p class="date">
		<span class="day">23</span>
		<span class="month">Aug</span>
	</p>
</header>

<div class="paragraph"><p>Cowboy <code>2.0.0-rc.2</code> has been released!</p></div>
<div class="paragraph"><p>This is the new recommended version of Cowboy.
Its API should not change before release. While
you probably should not use it in production yet,
many do successfully. Use at your own risk.</p></div>
<div class="paragraph"><p>This new version contains fixes for the following
issues:</p></div>
<div class="ulist"><ul>
<li>
<p>
HTTP/2 server push was using the wrong header
  compression context.
</p>
</li>
<li>
<p>
HTTP/2 flow control could end up queueing data
  in the wrong order when resuming the sending of
  data.
</p>
</li>
<li>
<p>
The <code>shutdown</code> timeout was not implemented
  and request processes could be killed too quickly.
</p>
</li>
</ul></div>
<div class="paragraph"><p>What else is new in Cowboy 2.0? Check the
<a href="/articles/cowboy-2.0.0-rc.1">rc.1 announcement</a>.</p></div>
<div class="paragraph"><p>Please test this new release candidate and provide
feedback! The best place to provide feedback is via
tickets. Do not hesitate to open a ticket or bring
an existing ticket to my attention to get it resolved
before 2.0.</p></div>

</article>
</div>

<div class="span3 sidecol">
<h3>More articles</h3>
<ul id="articles-nav" class="extra_margin">
	
		
			<li><a href="https://ninenines.eu/articles/cowboy-2.4.0/">Cowboy 2.4</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.3.0/">Cowboy 2.3</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.2.0/">Cowboy 2.2</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.1.0/">Cowboy 2.1</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0/">Cowboy 2.0</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0-rc.2/">Cowboy 2.0 release candidate 2</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0-rc.1/">Cowboy 2.0 release candidate 1</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/the-elephant-in-the-room/">The elephant in the room</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/dont-let-it-crash/">Don&#39;t let it crash</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0-pre.4/">Cowboy 2.0 pre-release 4</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-1.3/">Ranch 1.3</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ml-archives/">Mailing list archived</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/website-update/">Website update</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlanger-playbook-september-2015-update/">The Erlanger Playbook September 2015 Update</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlanger-playbook/">The Erlanger Playbook</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang-validate-utf8/">Validating UTF-8 binaries with Erlang</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/on-open-source/">On open source</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/the-story-so-far/">The story so far</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy2-qs/">Cowboy 2.0 and query strings</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/january-2014-status/">January 2014 status</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/farwest-funded/">Farwest got funded!</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang.mk-and-relx/">Build Erlang releases with Erlang.mk and Relx</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.5-intermediate-module/">Xerl: intermediate module</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.4-expression-separator/">Xerl: expression separator</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang-scalability/">Erlang Scalability</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.3-atomic-expressions/">Xerl: atomic expressions</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.2-two-modules/">Xerl: two modules</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.1-empty-modules/">Xerl: empty modules</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-ftp/">Build an FTP Server with Ranch in 30 Minutes</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/tictactoe/">Erlang Tic Tac Toe</a></li>
		
	
</ul>

<h3>Feedback</h3>
<p>Feel free to <a href="mailto:[email protected]">email us</a>
if you found any mistake or need clarification on any of the
articles.</p>

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<div class="span9 maincol">

<article class="blog_item">
<header>
	<h1 class="lined-header"><span>Cowboy 2.0 release candidate 2</span></h1>
	<p class="date">
		<span class="day">23</span>
		<span class="month">Aug</span>
	</p>
</header>

<div class="paragraph"><p>Cowboy <code>2.0.0-rc.2</code> has been released!</p></div>
<div class="paragraph"><p>This is the new recommended version of Cowboy.
Its API should not change before release. While
you probably should not use it in production yet,
many do successfully. Use at your own risk.</p></div>
<div class="paragraph"><p>This new version contains fixes for the following
issues:</p></div>
<div class="ulist"><ul>
<li>
<p>
HTTP/2 server push was using the wrong header
  compression context.
</p>
</li>
<li>
<p>
HTTP/2 flow control could end up queueing data
  in the wrong order when resuming the sending of
  data.
</p>
</li>
<li>
<p>
The <code>shutdown</code> timeout was not implemented
  and request processes could be killed too quickly.
</p>
</li>
</ul></div>
<div class="paragraph"><p>What else is new in Cowboy 2.0? Check the
<a href="/articles/cowboy-2.0.0-rc.1">rc.1 announcement</a>.</p></div>
<div class="paragraph"><p>Please test this new release candidate and provide
feedback! The best place to provide feedback is via
tickets. Do not hesitate to open a ticket or bring
an existing ticket to my attention to get it resolved
before 2.0.</p></div>

</article>
</div>

<div class="span3 sidecol">
<h3>More articles</h3>
<ul id="articles-nav" class="extra_margin">
	
		
			<li><a href="https://ninenines.eu/articles/cowboy-2.4.0/">Cowboy 2.4</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.3.0/">Cowboy 2.3</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.2.0/">Cowboy 2.2</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.1.0/">Cowboy 2.1</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0/">Cowboy 2.0</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0-rc.2/">Cowboy 2.0 release candidate 2</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0-rc.1/">Cowboy 2.0 release candidate 1</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/the-elephant-in-the-room/">The elephant in the room</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/dont-let-it-crash/">Don&#39;t let it crash</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.0.0-pre.4/">Cowboy 2.0 pre-release 4</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-1.3/">Ranch 1.3</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ml-archives/">Mailing list archived</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/website-update/">Website update</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlanger-playbook-september-2015-update/">The Erlanger Playbook September 2015 Update</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlanger-playbook/">The Erlanger Playbook</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang-validate-utf8/">Validating UTF-8 binaries with Erlang</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/on-open-source/">On open source</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/the-story-so-far/">The story so far</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy2-qs/">Cowboy 2.0 and query strings</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/january-2014-status/">January 2014 status</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/farwest-funded/">Farwest got funded!</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang.mk-and-relx/">Build Erlang releases with Erlang.mk and Relx</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.5-intermediate-module/">Xerl: intermediate module</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.4-expression-separator/">Xerl: expression separator</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang-scalability/">Erlang Scalability</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.3-atomic-expressions/">Xerl: atomic expressions</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.2-two-modules/">Xerl: two modules</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/xerl-0.1-empty-modules/">Xerl: empty modules</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-ftp/">Build an FTP Server with Ranch in 30 Minutes</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/tictactoe/">Erlang Tic Tac Toe</a></li>
		
	
</ul>

<h3>Feedback</h3>
<p>Feel free to <a href="mailto:[email protected]">email us</a>
if you found any mistake or need clarification on any of the
articles.</p>

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