Gluster 3.1 Release Notes: Compatibility Issues
From GlusterDocumentation
GlusterFS v3.1 is designed to support your existing volume configuration files without requiring any changes. However, Gluster recommends that you upgrade your configuration to take advantage of new elastic volume management capabilities and other features available in Gluster v3.1.
For more information, see the Gluster 3.0 to 3.1 Upgrade Guide.


