I just started to integrate Activiti Engine 5.12 with our codebase (using 5.11) and noticed some build errors on classes using Drools. It seems like 5.12 reverted to an old Drools version 5.1.1 (also mentioned in the notice.txt). Does anyone know why? The code does not build with a more recent version of Drools.
Activiti Engine 5.10 and 5.11 were on Drool 5.4.0 and the current release is 5.5 (with 6 in beta).
Sorry for the late response, had to let this go due to other priorities.
But now I returned to the issue, this time with 5.13. I am not using Maven, so I have to fix dependencies manually. I saw compiler errors because of missing drools imports, so I added the drools-… jars, but I missed the two knowledge-… jars.