At last, the Active Directory Migration Tool (ADMT) 3.2 was released to public. ADMT can be used to migrate and reorganize objects across in inter-forest (cross-forest) or intra-forest scenarios.
The previous version, ADMT 3.1, dates back to July, 2008 and is supported only on Windows Server 2008, but not R2. With the release of R2 this lead to added complexity because projects needed to introduce a different OS in their environment.
The new 3.2 version of ADMT only runs on Windows Server 2008 R2, but not on earlier versions. As you can also see from the table below, the new ADMT version requires Windows Server 2003 domain functional level in both the source and the target domain:
Note that ADMT uses Password Export Server (PES) which is currently still at version 3.1. Be advised that this version of PES isn’t supported on Windows Server 2008 R2, so I expect an update for PES as well. PES 3.1 can be downloaded here (x64) or here (x86).