In addition to the bug fixes, CIFS provides the following enhancements and changes in OES 2015 SP1 September patch:
On a Mac machine, if the customized color or icon is assigned to a file or folder on a volume mounted through AFP, then the customization is not visible when the same volume is mounted through CIFS. To achieve this, a new utility (migafp2cifs) is introduced that converts AFP specific metadata information to CIFS specific format.
For more information on the options, see the migafp2cifs man page.
Beginning with OES 2015 SP1 September patch, CIFS provides support for server-side copy operations via SMB. The CIFS clients can now off-load the copy operations to the OES CIFS file server using the Copy-Chunk requests. This request ensure improved file server performance as the network round-trip is avoided. The CIFS clients must support and issue SMB2 FSCTL_SRV_COPYCHUNK server-side copy request. By default, this feature is enabled on the OES CIFS file server.