In addition to bug fixes, Domain Services for Windows (DSfW) provides the following enhancements and changes in OES 2018 SP2.
DSfW on OES 2018 SP2 supports schema level and domain functional level equivalent to AD in Windows Server 2016. With updated schema level, the applications that integrates with the later releases of AD can work better in DSfW environment.
Beginning with OES 2018 SP2, DSfW domain can integrate with NSS AD servers in the same eDirectory tree. The integration is certified in single domain as well as in trusted domain scenarios.