BPMN Modeler – Release Notes – November 30, 2018

It is now easier to move lanes inside a pool. Previously the drop zone of lanes was limited to the header area. Now the drop zone extends to the borders of the lanes as well.
Participants (depicted as pools or choreography bands) can now be merged based on their name. When naming a participant with a name that already exists in the model, you will be prompted to either merge them as a single participant or keep them separated.

Fixed an issue where sometime a lane could get out of its containing pool.
Fixed an issue that would prevent to modify an existing data type under certain conditions.
Quick arrows are now hidden when moving a shape label to prevent undesirable interactions.