title: Most Stable Version of Drools
body: <p>We are planning to use Drools in our organisation with Scala/Spark. We have selected Drools Version 5.3.0 and 7.15.0 for our use but we have some stability doubts between them because Version 7.15.0 has recently launched &amp; we are not sure whether it is stable or not. </p>
  
  <p>We have practiced with Version 5.3.0 but we want to know the life cycle of it. What if after some time, Version 5.3.0 will not available for use or some update is brought for this?</p>
  
  <p>So please help us to chose between them which version should we chose for longer use.</p>