Drivers written for build 6002 generally work on 6003. However, any driver that strictly checks for build == 6002 (rare, but happens with legacy antivirus) may fail to load. Most drivers check build >= 6000 or build >= 6001 .

Despite occasional online references, Microsoft never produced a Service Pack 3 for Windows Server 2008. The build number increment does not represent a service pack.

In short: , not a public-facing feature release.