When a device has a threat policy that does not enable AMSI, the client will automatically unregister the AMSIProvider DLL. When the policy changes to enable AMSI, the DLL is automatically re-registered.
Windows 7 has now been added as a supported Operating System for IPS. If this release shows to be stable, it will likely become the version to be officially released.
There is still no IPS for Windows servers in EAP.
In case you missed it: In April, Sophos released AMSI to all eligible endpoints and servers.