+ - OpenFlow:
+ - Allow general bitwise masking for IPv4 and IPv6 addresses in
+ IPv4, IPv6, and ARP packets. (Previously, only CIDR masks
+ were allowed.)
+ - Allow support for arbitrary Ethernet masks. (Previously, only
+ the multicast bit in the destination address could be individually
+ masked.)
+ - New field OXM_OF_METADATA, to align with OpenFlow 1.1.
+ - The OFPST_QUEUE request now reports an error if a specified port or
+ queue does not exist, or for requests for a specific queue on all
+ ports, if the specified queue does not exist on any port. (Previous
+ versions generally reported an empty set of results.)
+ - New "flow monitor" feature to allow controllers to be notified of
+ flow table changes as they happen.
+ - Additional protocols are not mirrored and dropped when forward-bpdu is
+ false. For a full list, see the ovs-vswitchd.conf.db man page.
+ - Open vSwitch now sends RARP packets in situations where it previously
+ sent a custom protocol, making it consistent with behavior of QEMU and
+ VMware.
+ - All Open vSwitch programs and log files now show timestamps in UTC,
+ instead the local timezone, by default.