Version 3.0.19263.1 of Resource Scheduling Optimization brings the following functionalities:

• Constraint “Meets Resource Preferences” also respects the new Resource Preference Type “Must Choose From” to force selection from certain Resouces only

• new Objective “As Soon As Possible”: helps to front load rather than leaving some emergency/unplanned capacity

• new Constraint “Meets Required Roles”: matches Requirement Roles with Resource Roles

• RSO recalculates Travel Time also for locked bookings (Operation Details: “Only the travel time was updated for the booking.”)

Source & more information:
https://cloudblogs.microsoft.com/dynamics365/it/2019/10/03/whats-new-in-dynamics-365-resource-scheduling-optimization-version-3-0-19263-1/