PDC team periodically creates new features that depend on gathering additional data from monitored systems. As PDC "listens" rather than "asks", these new features require adding new / updated rules into monitored system.
To greatest extent possible, we are making enhancements available to all Pega 8 platform releases via the maintenance/service release process. When a system is upgraded to latest maintenance release, the new 'remote' rules come with it.
If you want to take advantage of the latest PDC features without dependence on maintenance upgrade, the new rules can be downloaded from the community marketplace.