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	<title>Comments on: Ext JS in Action Excerpts and Discount; Ext JS 3.0 RC update</title>
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	<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update</link>
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		<title>By: Iumentum</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273644</link>
		<dc:creator>Iumentum</dc:creator>
		<pubDate>Wed, 27 May 2009 13:46:48 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273644</guid>
		<description>Nice to see that ExtJS keep expanding and upgrading what i see as the best component JS library.</description>
		<content:encoded><![CDATA[<p>Nice to see that ExtJS keep expanding and upgrading what i see as the best component JS library.</p>
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		<title>By: Deadmeat</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273371</link>
		<dc:creator>Deadmeat</dc:creator>
		<pubDate>Fri, 08 May 2009 11:13:23 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273371</guid>
		<description>Anecdotally I can say that upgrading is fairly painless. I wrote a fairly complex tree extension that works unchanged in the new version.

http://extjs.com/forum/showthread.php?t=60759

Admittedly I don&#039;t think there were any improvements to the tree in 3, so ymmv if you use other components. So far I think the bigger issue is bugs in the rc version.</description>
		<content:encoded><![CDATA[<p>Anecdotally I can say that upgrading is fairly painless. I wrote a fairly complex tree extension that works unchanged in the new version.</p>
<p><a href="http://extjs.com/forum/showthread.php?t=60759" rel="nofollow">http://extjs.com/forum/showthread.php?t=60759</a></p>
<p>Admittedly I don&#8217;t think there were any improvements to the tree in 3, so ymmv if you use other components. So far I think the bigger issue is bugs in the rc version.</p>
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		<title>By: JustinCarter</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273366</link>
		<dc:creator>JustinCarter</dc:creator>
		<pubDate>Thu, 07 May 2009 21:18:21 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273366</guid>
		<description>@gsenior: Backwards compatibility is supposed to be good. The 3.0 RC 1.1 release says this about upgrading:

&quot;User upgrading to Ext JS 3.0, will be happy to hear there are little to no breaking changes. We took great care in only creating breaking changes where absolutely necessary. You may encounter issues upgrading if you were previously manipulating private properties of an Ext.menu.Menu or an Ext.Toolbar or if you had custom styling of an Ext.Button.&quot;

Read the full blog post, there are heaps of awesome new and improved components:

http://extjs.com/blog/2009/05/04/ext-js-30-rc11-released/</description>
		<content:encoded><![CDATA[<p>@gsenior: Backwards compatibility is supposed to be good. The 3.0 RC 1.1 release says this about upgrading:</p>
<p>&#8220;User upgrading to Ext JS 3.0, will be happy to hear there are little to no breaking changes. We took great care in only creating breaking changes where absolutely necessary. You may encounter issues upgrading if you were previously manipulating private properties of an Ext.menu.Menu or an Ext.Toolbar or if you had custom styling of an Ext.Button.&#8221;</p>
<p>Read the full blog post, there are heaps of awesome new and improved components:</p>
<p><a href="http://extjs.com/blog/2009/05/04/ext-js-30-rc11-released/" rel="nofollow">http://extjs.com/blog/2009/05/04/ext-js-30-rc11-released/</a></p>
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		<title>By: gsenior</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273365</link>
		<dc:creator>gsenior</dc:creator>
		<pubDate>Thu, 07 May 2009 20:40:12 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273365</guid>
		<description>Does anyone know how easy migration from 2.2 will be?

@ilazarte - why post something so utterly unconstructive?</description>
		<content:encoded><![CDATA[<p>Does anyone know how easy migration from 2.2 will be?</p>
<p>@ilazarte &#8211; why post something so utterly unconstructive?</p>
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	<item>
		<title>By: ilazarte</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273362</link>
		<dc:creator>ilazarte</dc:creator>
		<pubDate>Thu, 07 May 2009 19:19:23 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273362</guid>
		<description>Snorefest.  I care more about Bindows than I do Ext.</description>
		<content:encoded><![CDATA[<p>Snorefest.  I care more about Bindows than I do Ext.</p>
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	<item>
		<title>By: crink</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273357</link>
		<dc:creator>crink</dc:creator>
		<pubDate>Thu, 07 May 2009 18:25:51 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273357</guid>
		<description>Actually Tim Sporcic (http://www.sporcic.org/) did this test with SlickSpeed and it turns out Ext Core 3.0 is faster than Sizzle on some browsers. Here is the article

http://www.sporcic.org/2009/04/slick-speed/</description>
		<content:encoded><![CDATA[<p>Actually Tim Sporcic (<a href="http://www.sporcic.org/" rel="nofollow">http://www.sporcic.org/</a>) did this test with SlickSpeed and it turns out Ext Core 3.0 is faster than Sizzle on some browsers. Here is the article</p>
<p><a href="http://www.sporcic.org/2009/04/slick-speed/" rel="nofollow">http://www.sporcic.org/2009/04/slick-speed/</a></p>
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	<item>
		<title>By: Les</title>
		<link>http://ajaxian.com/archives/ext-js-in-action-excerpts-and-discount-ext-js-30-rc-update/comment-page-1#comment-273353</link>
		<dc:creator>Les</dc:creator>
		<pubDate>Thu, 07 May 2009 17:28:33 +0000</pubDate>
		<guid isPermaLink="false">http://ajaxian.com/?p=6777#comment-273353</guid>
		<description>Are there any plans to include Ext in a TaskSpeed comparo?  Ext Core 3.0 looks good.  I&#039;d like to see how well it stacks up against other libraries performance-wise.
http://yuiblog.com/blog/2009/04/13/yui-270-on-taskspeed/</description>
		<content:encoded><![CDATA[<p>Are there any plans to include Ext in a TaskSpeed comparo?  Ext Core 3.0 looks good.  I&#8217;d like to see how well it stacks up against other libraries performance-wise.<br />
<a href="http://yuiblog.com/blog/2009/04/13/yui-270-on-taskspeed/" rel="nofollow">http://yuiblog.com/blog/2009/04/13/yui-270-on-taskspeed/</a></p>
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