The Joomla! Project is pleased to announce the immediate availability of Joomla 3.0.0. This is the next major release of the Joomla CMS in the Standard Term Support (STS) track. All 3.0 users will need to plan to update to the new versions available in the STS release cycle every six months until version 3.5 is released. These updates are expected to be simple and backwards compatible.
The standard-term releases are designed for users who need access to the new features. Most users with existing 2.5.x sites will not want to update to version 3.0. Users creating new sites can use either version 2.5 or 3.0, depending on which best suits their needs. Please consider the availability of third-party templates and extensions when deciding which Joomla version to use. Also, if you decide to use version 3.0, please be aware that you will need to update your site every six months (to 3.1, 3.2, and so on) until version 3.5 is available. These updates are expected to be simple and backwards compatible.
Version 2.5 of the Joomla! CMS is a Long Term Support (LTS) release and support for it will continue until shortly after the release of Joomla 3.5, scheduled for Spring 2014. Users on version 2.5 do not need to migrate to Joomla 3.0.
Support for Joomla 1.5 will end shortly after the release of Joomla 3.0. It is currently supported only for security issues.
Yes. Any update issues will be a top priority and will likely be resolved early in the 3.x release train. However, it is likely that many templates and extensions for Joomla 2.5 will need modification to work with Joomla 3. Always test prior to migrating and consult with the developers of any extensions and templates you use. Be aware that the technical requirements for running Joomla 3.0 are different. In addition to requiring newer versions of software, certain settings that were once recommmened are now required such as requiring that magic quotes is off. See the Technical Requirements page for the specifications. See the Joomla 3.0.0 Post-Release FAQs for more detailed information about updating from 2.5 to 3.0.
This release also includes the current version (12.2) of the Joomla! Platform, which includes a large number of new and improved packages.
New Installations: Click here to download Joomla 3.0.0 (Full package) »
See the Download page for other packages and information on updating.
Note: Please read the Joomla 3.0 FAQ and the update instructions before updating.
Want to test drive Joomla? Try the online demo or the Joomla JumpBox. Documentation is available for beginners.
Please note that you should always backup your site before upgrading.
Check the Joomla 3.0.0 Post-Release FAQs to see if there are important items and helpful hints discovered after the release.
Source: <http://www.joomla.org/announcements/release-news/5464-joomla-3-0-0-released.html>
You should use an RSS module in relevant position if you want to render a third party feed, or grab one from a different part of the same website in question.
To show a relevant page feed (auto-feed articles on your own site), do this:
This is tested in Joomla 2.5.x only, it may work in J3.x.x
You need to edit the file at root/language/en-GB/en-GB.localise.php and focus on line 64(ish).
This quick article tells you how to make highlights to unpublished article content items when using a category blog layout. It helps a user/editor/publisher/you identify easily with a visual aid which articles are not published. We are only covering Joomla 2.5.x.
This brief article will tell you how to make highlights on registered access only article content similar to the default highlighting found on unpublished articles when a user is logged in. It covers Joomla 2.5.x.
If you are modifying the edit form for Joomla 2.5.x or other form that requires a need to test if this is a Super Administrator just use the following. Handy if you need to block out certain functionality for different user groups but you still need full access to those options as an administrator.

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