In addition to the bug fixes, CIFS provides the following enhancements and changes in Update 33 - OES 2015 SP1:
Folder Redirection allows users to redirect the path of a known folder to a network file share. Users can then interact with files in the redirected folder as if it still existed on the local drive. Beginning with OES 2015 SP1 Update 33, CIFS share can be enabled to host the redirected folders on the server. For information on configuring the CIFS share for Folder Redirection, see Section 5.10, Enabling Folder Redirection Support.