-Directory database replication (AD DC mode)
-===========================================
-
-Directory replication has been reworked in order to improve the
-correctness and efficiency.
-As a net effect of it, replication with other domain controllers with
-a heavily modified schema is now possible (ie. Windows 2012 DCs or
-other Windows DC with exchange installed) and replication didn't fail
-anymore in such environments.
-
-
-Server-Side Copy Support
-========================
-
-Samba 4.1.0 adds support for server-side copy operations via the SMB2
-FSCTL_SRV_COPYCHUNK request. Clients making use of server-side copy
-support, such as Windows Server 2012, should experience considerable
-performance improvements for file copy operations, as file data need not
-traverse the network.
-This feature is enabled by default on the smbd file server.
-
-
-Btrfs Filesystem Integration
-============================
+Flush requests from SMB2/3 clients are handled asynchronously and do
+not block the processing of other requests. Note that 'strict sync'
+has to be set to 'yes' for Samba to honor flush requests from SMB
+clients.