In addition to bug fixes, the following changes were made to Novell CIFS in the OES 2 SP3 May 2011 Scheduled Maintenance patch:
Supports for offline client-side caching for files. For more information, see Enabling or Disabling Client-side Caching
Support for Mask Behaviour for Range Locks. For more information, see Enabling or Disabling Mask Behaviour for Range Locks