The incredible WordPress blog platform today sees it’s 3.0 final release. WordPress 3 brings a significant number of improvements including, but not limited to:

• new default theme: Twenty Ten (screenshot)
• new APIs that allow them to easily implement custom backgrounds, headers, shortlinks, menus (no more file editing), post types, and taxonomies.
• a long awaited merge of MU and WordPress, creating the new multi-site functionality which makes it possible to run one blog or ten million from the same installation.
• a lighter overall feel with contextual help on every screen.
• bulk plugin updating! (this kills off one of our largest pet peeves.. bless your hearts WP dev team)

more info on :http://www.wordpress.org

Go to WordPress 3.0 Multisite Settings. You can find them under Options->Network:

After you set the settings, you receive in a second step the content for wp-config.php and .htaccess. Additionally you have to create the subfolder blogs.dir in wp-content , where you put the media-files for each blog.

WordPress 3.0 is still under development, there might be many changes until the final release.

WordPress 3.0 RC1, the new release candidate of WordPress, is now available. Most of the errors have been fixed.

Here are the things that people can expect to have in this newest version of WordPress, one of the most blog publishing platforms on the web:

1) A New Default Theme (finally!)

The default wordpress theme with blue header is replaced with an elegant theme with streamlined photo header. The theme has drop down navigation feature and many other stylish features. There are 6 sidebar areas on the new default theme (2 on the side, and 4 on the footer) and many customization options like changing background, header, etc.

2) Multiuser &Multisite Feature

This new version of WordPress has a Multisite WordPress option that allow the user to convert previous WordPress installations while installing the new WordPress installation with some simple edits to the wp-config.php file. There is also a SuperAdmin role that has administrator access to all of the sites. However, the individual sites can still have their own administrators.

3) New Menu System

This is an interesting change that can be found in this new WordPress version that really changes everything. The custom navigational menu system enables the users to create menus from pages, categories, and external URLs. The drop down feature can be adjusted, just like the new theme that can be modified easily, and this makes customizing WordPress become super easy. No more moving around, coding, or plugin needed just to have a nice navigation menu.

4) Custom Taxonomies and Post Types

The previous version of WordPress already has them, but they are not in simple form. But in this new version of WordPress, they are very easy to use. Custom taxonomy feature allows the users to sort posts other than in the normal categories or tags. There is also a color taxonomy that let the users to search by color instead of category. The custom post feature that can be found in this release candidate is just like how Tumblr arrange photos, texts, etc.

5) Customizable Username

This new version of WordPress allows the users to create their own custom usernames. This is really a good thing that can eliminate 33 percent of security issues caused by brutal force attempts. The wordpress users can now make their usernames other than “admin”.

6) Miscellaneous Features

Other than all of the mentioned features, there are still more features such as author templates, URL shortlinks, welcome guide, automatic feeds inclusion, and many more.

What Can People do to help?

People who are interested should try to install and run this WordPress release candidate. By using this release candidate, people can submit a ticket to WordPress whenever they find an error, and help thousands of other WordPress users that encounter the same error. Developers can submit their tickets to trac for fun. To help in submitting the tickets and getting errors fixed, it is also a good idea to be actively involved in mailing list, chat, forums, etc. As we all know, the community is the thing that makes WordPress great.