The former initiator of optaplanner has joined a new team to develop a timefold. What about optaplanner? Will there be new teams joining in for continuous updates? Or do we need to transfer to Timefold? We don’t want to transfer the technology stack, we just want to use optaplanner stably.
I would like to know if optaplanner will continue to update and release new stable versions?

In the latest version 9.44.0 OptPlanner, for example, there is an example for curriculum course scheduling. I cannot understand the structures of input data files under the folder C:Program Filesoptaplannerexamplessourcesdatacurriculumcourseimport, i.e. how to represent constraints and raw data. There is no related doc.

I have saved a Java stream constraint as a varchar in database.

We are using optaplanner 9.44.0.Final version for our spring project and i am facing below exception

I’m trying to model a constraint based on the sum of a field across all instances of one of my entities, but the collectors work in concert with groupBy(). I don’t want the grouping, just the operator over all the instances. Something like: