-Post-v2.3.0
+Post-v2.5.0
---------------------
- - Added support for SFQ, FQ_CoDel and CoDel qdiscs.
+
+
+v2.5.0 - xx xxx xxxx
+---------------------
+ - Dropped support for Python older than version 2.7. As a consequence,
+ using Open vSwitch 2.5 or later on XenServer 6.5 or earlier (which
+ have Python 2.4) requires first installing Python 2.7.
+ - OpenFlow:
+ * Group chaining (where one OpenFlow group triggers another) is
+ now supported.
+ * OpenFlow 1.4+ "importance" is now considered for flow eviction.
+ * OpenFlow 1.4+ OFPTC_EVICTION is now implemented.
+ * OpenFlow 1.4+ OFPTC_VACANCY_EVENTS is now implemented.
+ * OpenFlow 1.4+ OFPMP_TABLE_DESC is now implemented.
+ * Allow modifying the ICMPv4/ICMPv6 type and code fields.
+ - ovs-ofctl:
+ * New "out_group" keyword for OpenFlow 1.1+ matching on output group.
+ - Support for matching/generating options as well as the OAM bit with
+ Geneve tunnels.
+ - Support Multicast Listener Discovery (MLDv1 and MLDv2).
+ - Add 'symmetric_l3l4' and 'symmetric_l3l4+udp' hash functions.
+ - sFlow agent now reports tunnel and MPLS structures.
+ - Added OpenFlow 1.4+ OFPT_SET_ASYNC_CONFIG and OFPT_GET_ASYNC_CONFIG
+ that allows controllers to have more precise control over OpenFlow1.4
+ asynchronous messages.
+ - New 'check-system-userspace', 'check-kmod' and 'check-kernel' Makefile
+ targets to run a new system testsuite. These tests can be run inside
+ a Vagrant box. See INSTALL.md for details
+ - Dropped support for GRE64 tunnel.
+ - Mark --syslog-target argument as deprecated. It will be removed in
+ the next OVS release.
+ - Added --user option to all daemons
+ - Add support for connection tracking through the new "ct" action
+ and "ct_state"/"ct_zone"/"ct_mark"/"ct_label" match fields. Only
+ available on Linux kernels with the connection tracking module loaded.
+ - Add experimental version of OVN. OVN, the Open Virtual Network, is a
+ system to support virtual network abstraction. OVN complements the
+ existing capabilities of OVS to add native support for virtual network
+ abstractions, such as virtual L2 and L3 overlays and security groups.
+
+
+v2.4.0 - 20 Aug 2015
+---------------------
+ - Flow table modifications are now atomic, meaning that each packet
+ now sees a coherent version of the OpenFlow pipeline. For
+ example, if a controller removes all flows with a single OpenFlow
+ "flow_mod", no packet sees an intermediate version of the OpenFlow
+ pipeline where only some of the flows have been deleted.
+ - Added support for SFQ, FQ_CoDel and CoDel qdiscs.
- Add bash command-line completion support for ovs-vsctl Please check
utilities/ovs-command-compgen.INSTALL.md for how to use.
- The MAC learning feature now includes per-port fairness to mitigate
commands are now redundant and will be removed in a future
release. See ovs-vswitchd(8) for details.
- OpenFlow:
+ * OpenFlow 1.4 bundles are now supported for flow mods and port
+ mods. For flow mods, both 'atomic' and 'ordered' bundle flags
+ are trivially supported, as all bundled messages are executed
+ in the order they were added and all flow table modifications
+ are now atomic to the datapath. Port mods may not appear in
+ atomic bundles, as port status modifications are not atomic.
* IPv6 flow label and neighbor discovery fields are now modifiable.
* OpenFlow 1.5 extended registers are now supported.
* The OpenFlow 1.5 actset_output field is now supported.
* A new Netronome extension to OpenFlow 1.5+ allows control over the
fields hashed for OpenFlow select groups. See "selection_method" and
related options in ovs-ofctl(8) for details.
+ - ovs-ofctl has a new '--bundle' option that makes the flow mod commands
+ ('add-flow', 'add-flows', 'mod-flows', 'del-flows', and 'replace-flows')
+ use an OpenFlow 1.4 bundle to operate the modifications as a single
+ atomic transaction. If any of the flow mods in a transaction fail, none
+ of them are executed. All flow mods in a bundle appear to datapath
+ lookups simultaneously.
+ - ovs-ofctl 'add-flow' and 'add-flows' commands now accept arbitrary flow
+ mods as an input by allowing the flow specification to start with an
+ explicit 'add', 'modify', 'modify_strict', 'delete', or 'delete_strict'
+ keyword. A missing keyword is treated as 'add', so this is fully
+ backwards compatible. With the new '--bundle' option all the flow mods
+ are executed as a single atomic transaction using an OpenFlow 1.4 bundle.
- ovs-pki: Changed message digest algorithm from MD5 to SHA-1 because
MD5 is no longer secure and some operating systems have started to disable
it in OpenSSL.
with Docker, the wrapper script will be retired.
- Added support for DPDK Tunneling. VXLAN, GRE, and Geneve are supported
protocols. This is generic tunneling mechanism for userspace datapath.
- - Support for multicast snooping (IGMPv1 and IGMPv2)
+ - Support for multicast snooping (IGMPv1, IGMPv2 and IGMPv3)
- Support for Linux kernels up to 4.0.x
- The documentation now use the term 'destination' to mean one of syslog,
console or file for vlog logging instead of the previously used term
openvswitch.ko but built and loaded automatically as individual kernel
modules (vport-*.ko).
- Support for STT tunneling.
+ - ovs-sim: New developer tool for simulating multiple OVS instances.
+ See ovs-sim(1) for more information.
+ - Support to configure method (--syslog-method argument) that determines
+ how daemons will talk with syslog.
+ - Support for "ovs-appctl vlog/list-pattern" command that lets to query
+ logging message format for each destination.
v2.3.0 - 14 Aug 2014