Once a node has been migrated to PSSP 3.1 or to HACMP/ES at the HACMP 4.3 level for both Group Services and Topology Services, this support will be activated on that node. This is because adapter membership reporting is a purely local issue for Group Services. However, if clients do not care about the information conveyed by the special data, they can simply ignore the special data. All functions should work exactly as they expect today.