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<header>
	<h1 class="lined-header"><span>Cowboy 2.0 release candidate 2</span></h1>
	<p class="date">
		<span class="year">2017</span>
		<span class="day-month">23 Aug</span>
	</p>
</header>

<p>Cowboy <code>2.0.0-rc.2</code> has been released!</p>
<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>
<p>This new version contains fixes for the following issues:</p>
<ul><li>HTTP/2 server push was using the wrong header compression context.
</li>
<li>HTTP/2 flow control could end up queueing data in the wrong order when resuming the sending of data.
</li>
<li>The <code>shutdown</code> timeout was not implemented and request processes could be killed too quickly.
</li>
</ul>
<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>
<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>


</article>
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			<li><a href="https://ninenines.eu/articles/gun-1.0.0-rc.1/">Gun 1.0 release candidate 1</a></li>
		
	
			<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>
		
	
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			<li><a href="https://ninenines.eu/articles/website-update/">Website update</a></li>
		
	
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</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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<header>
	<h1 class="lined-header"><span>Cowboy 2.0 release candidate 2</span></h1>
	<p class="date">
		<span class="year">2017</span>
		<span class="day-month">23 Aug</span>
	</p>
</header>

<p>Cowboy <code>2.0.0-rc.2</code> has been released!</p>
<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>
<p>This new version contains fixes for the following issues:</p>
<ul><li>HTTP/2 server push was using the wrong header compression context.
</li>
<li>HTTP/2 flow control could end up queueing data in the wrong order when resuming the sending of data.
</li>
<li>The <code>shutdown</code> timeout was not implemented and request processes could be killed too quickly.
</li>
</ul>
<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>
<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>


</article>
</div>

<div class="span3 sidecol">
<h3>More articles</h3>
<ul id="articles-nav" class="extra_margin">
	
		
			<li><a href="https://ninenines.eu/articles/merry-christmas-2019/">Merry Christmas 2019: New Beginnings</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/github-sponsors/">GitHub Sponsors</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.7.0/">Cowboy 2.7</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/gun-2.0.0-pre.1/">Gun 2.0 pre-release 1</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/erlang-meetup-10-septembre-2019/">Erlang meetup: 10 septembre 2019</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-2.0.0-rc.1/">Ranch 2.0 release candidate 1</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/joe_the_rubber_duck/">Joe Armstrong the rubber duck</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/merry-christmas-2018/">Merry Christmas 2018: A Recap</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.6.0/">Cowboy 2.6</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-1.7.0/">Ranch 1.7</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/cowboy-2.5.0/">Cowboy 2.5</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/gun-1.3.0/">Gun 1.3</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/gun-1.2.0/">Gun 1.2</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/ranch-1.6.0/">Ranch 1.6</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/gun-1.0.0/">Gun 1.0</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/asciideck/">Asciideck: Asciidoc for Erlang</a></li>
		
	
			<li><a href="https://ninenines.eu/articles/gun-1.0.0-rc.1/">Gun 1.0 release candidate 1</a></li>
		
	
			<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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