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WordPress 3.0 vs 2.x

Please explain the difference.

2:36 pm on May 2, 2010 (gmt 0)

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I just installed WordPress 3.0 on a new domain just to test it out, and I really didn't notice any significant differences from version 2.x. I've read from various sources how WP 3.0 is a much more powerful CMS and has more features, blah blah blah... but can someone please tell me what the most important differences and upgrades are? I'm still sort of a WP noob, so sorry if this sounds like a dumb question.
4:33 pm on May 3, 2010 (gmt 0)

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No need for apologies... we welcome all questions and you're ahead of me in testing WP3, so good for you.

I think part of the hoopla is that for the last few versions of WP 2.x there's been talk of a merge between WP, which in its origins is a personal blogging platform, and Wordpress MU, aka Multi-User, aka WPMU.

The problem has been, for example, that some WP themes and plugins didn't work in WPMU and some did, so if you wanted to use those plugins and you wanted to run multiple blogs, you needed to have multiple installs.

With WP3, there's a full merge, meaning that WPMU has ceased to exist and WP now has multi-user, multi-blog functionality integral to it.
4:13 am on July 18, 2010 (gmt 0)

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Many security problems have been fixed, also it has the WPMU option.

The other big difference is the menu builder. I'm aware there was some sort of pluging that could do almost the same but the new WP3 meny builder is a good plus (I recall is still in some kind of "beta") but it lets you create nested menues just like you want them.

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