K2 RSS Feed addon for obRSS (Joomla RSS Feed Creator) has released a few days ago. And now, we are proud to release new version for the K2 RSS Feed addon with a lot of improvements.
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--- WHAT IS K2? ---
The powerful content component for Joomla!
K2 provides an out-of-the box integrated solution featuring rich content forms for items (think of Joomla! articles with additional fields for article images, videos, image galleries and attachments), nested-level categories, tags, comments, a system to extend the item base form with additional fields (similar to CCK for those acquainted with Drupal), a powerful plugin API to extend item, category and user forms, ACL, frontend editing, sub-templates and a lot more!
Using K2, you can transform your Joomla! website to a news/magazine site with author blogs, product catalogs, work portfolio, knowledge base, download/document manager, directory listing, event listing and more, all this bundled under one package!
Give K2 a try and you'll instantly love it! It's easy to use and fun to develop websites with! If you need any help or want to contribute to the project, join us at the K2 community." - Joomla Extensions Directory
K2 RSS Feed addon new version with fully K2 parameters to provides very flexible K2 RSS Feed.

K2 RSS Feed Configuration screen
CHANGLOGS (1.4)
~ More accessible Categories list
+ Add Access Level parameter.
+ Add Authors parameter. Able to select multiple authors.
+ Add "Fetch items from children categories" parameter.
+ Add "Featured Items" parameter. Able to show/hide Featured K2 Items.
+ Add K2 Items Ordering parameter: oldest first, most recent first, title alphabetical, title reverse-alphabetical, order, ordering reverse, most popular, highest rated, random ordering
+ Add "Description type" parameter. Able to show introtext or fulltext or even both introtext+fulltext.
To get a copy of K2 RSS Feed addon, please visit the Joomla RSS Feed Creator product page.