ADMT v3.2 has been updated and re-released at https://connect.microsoft.com/site1164. To download the tool, you will need to sign in to the Connect site and sign up for the "Azure AD connection program."
The tool version remains 3.2 because the update does not include any new functionality. The main changes were to allow the tool to be installed on any version of Windows Server and allow it to migrate computers that run any version of Windows.
The ADMT Migration Guide is also updated and available for download at http://www.microsoft.com/downloads/details.aspx?familyid=6D710919-1BA5-41CA-B2F3-C11BCB4857AF&displaylang=en and online at http://technet.microsoft.com/en-us/library/cc974332(WS.10).aspx.
Active Directory Documentation Team