Upgrading Drools Version from 6.2.0.Final to 7.31.0.Final --------------------------------------------------------- Key: DROOLS-5313 URL: https://issues.redhat.com/browse/DROOLS-5313 Project: Drools Issue Type: Quality Risk Components: core engine Reporter: Anuj Khare Assignee: Mario Fusco Priority: Blocker I am trying to upgrade below jars from 6.2.0.Final to 7.31.0.Final. Below are the issues am facing: 1. With 6.2.0.Final it takes 8 mins to compile all the rules, where as with 7.31.0.Final it takes nearly 40 mins 2. Some of the rules give wrong results when compiled with 7.31.0.Final Can some one help if and what needs to be taken care while upgrading drools jars. Jars am trying to upgrade are: org.drools.drools-compiler org.kie.kie-api org.jbpm.jbpm-flow org.jbpm.jbmpm-bpmn2