http://blog.athico.com/2012/05/drools-540final-released.html
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We are happy to announce the release of Drools (Expert, Fusion, Planner, Guvnor) 5.4.0.Final. jBPM 5.3.0 announcement will follow shortly and the link will be added when it does.

Documentation, Release Notes and Downloads are detailed below:

• Download the zips from the bottom of the drools download page.
• To try out the examples, just unzip one and run a runExamples.sh/.bat script.
• See the JBoss Maven repository for a list of all released artifacts.
• It will be synced to Maven Central automatically in a couple of hours.
• Read the new and noteworthy changes here.

Try it out and give us some feed-back (user list, issue tracker).

Some new online videos, make sure you change youtube setting to 720:

Build Pong in 13 Minutes
http://www.youtube.com/watch?v=Omj4PR3v-nI

Build a Graphical Adventure in 20 Minutes:
http://www.youtube.com/watch?v=4CvjKqUOEzM

Guided Decision Tables
http://vimeo.com/35472874

Importing Excel Decision Tables
http://vimeo.com/37033081http://vimeo.com/37033081