The cross-version compatibility checking mechanism is implemented when a project with new feature usages is loaded with an older version of the modeling tool. Currently, the cross-version compatibility checking mechanism tracks feature usages of 19.0 SP1,19.0 SP2, and later service pack versions that result in triggering Missing features detected notification in earlier versions. The following table shows tracked features, the version they appear in, and whether the project can be committed/saved without any consequences. St-Tx Strategic Actual Enterprise Phase Taxonomy Table Ac-Tx Actual Resources Taxonomy Matrix L2-L3 Logical Taxonomy Sr Service Roadmap Support of the MIL-STD-2525D symbology library SysML Compartment Usage In UAF Elements Showing BPMN Process elements in the predefined UAF relation maps is no supported by the product version you are currently using. Important Features required, but missing, in an earlier tool version (for example, 19.0) are memorized by the cross-version compatibility checking mechanism. This process will continue with each SP release (i.e., SP2 might have features that are missing in both SP1 and 19.0 GA). Feature name Version Secure to commit/save 19.0 SP2 Yes 19.0 SP2 Yes 19.0 SP2 Yes 19.0 SP2 Yes 19.0 SP2 Yes 19.0 SP2 Yes 19.0 SP2 Yes Resources to Capabilities Mapping (Rs-Tr) 19.0 SP3 Yes