OVN 24.03 was initially released on 1 March, 2024. This version of OVN is currently supported for critical and security fixes only. Support will end on 1 March, 2027.
v24.03.8 was released on 20 April, 2026.
Release Notes:
OVN v24.03.8 - 20 Apr 2026
--------------------------
- Security: Fixed vulnerability CVE-2026-5265.
- Security: Fixed vulnerability CVE-2026-5367.
- Bug fixes
- Add support for special port_security prefix "VRRPv3". This prefix allows
CMS to allow all required traffic for a VRRPv3 virtual router behind LSP.
See ovn-nb(5) man page for more details.
- Fixed support for fragmented traffic in the userspace datapath. Added the
"acl_ct_translation" NB_Global option to enable connection tracking
based L4 field translation for stateful ACLs. When enabled allows proper
handling of IP fragmentation in userspace datapaths. This option may break
hardware offloading and is disabled by default.
- Added disable_garp_rarp option to logical_router table in order to disable
GARP/RARP announcements by all the peer ports of this logical router.
v24.03.7 was released on 19 November, 2025.
Release Notes:
OVN v24.03.7 - 18 Nov 2025
--------------------------
- Bug fixes
- Add ovn-nbctl lsp-add-router-port which will create router port on
specified LS.
- Add ovn-nbctl lsp-add-localnet-port which will create localnet port on
specified LS.
v24.03.6 was released on 13 June, 2025.
Release Notes:
OVN v24.03.6 - 13 Jun 2025
--------------------------
- Bug fixes
- Improved handling of IPv6 traffic by enabling address prefix tracking
in OVS for both IPv4 and IPv6 addresses, whenever possible, reducing
the amount of IPv6 datapath flows.
- A new LRP option 'centralize_routing' has been added to a
distributed gateway port to centralize routing if the logical
switch of its peer doesn't have a localnet port.
v24.03.5 was released on 21 January, 2025.
Release Notes:
OVN v24.03.5 - 21 Jan 2025
--------------------------
- Bug fixes
v24.03.4 was released on 18 October, 2024.
Release Notes:
OVN v24.03.4 - 18 Oct 2024
--------------------------
- Bug fixes
v24.03.3 was released on 16 August, 2024.
Release Notes:
OVN v24.03.3 - 16 Aug 2024
--------------------------
- Bug fixes
v24.03.2 was released on 10 May, 2024.
Release Notes:
OVN v24.03.2 - 09 May 2024
--------------------------
- Bug fixes
v24.03.1 was released on 12 March, 2024.
Release Notes:
OVN v24.03.1 - 12 Mar 2024
--------------------------
- Bug fixes
- Security: Fixed vulnerability CVE-2024-2182.
v24.03.0 was released on 1 March, 2024.
Release Notes:
OVN v24.03.0 - 01 Mar 2024
--------------------------
- DNS now have an "options" column for configuration of extra options.
- A new DNS option "ovn-owned" has been added to allow defining domains
that are owned only by ovn, queries for that domain will not be processed
externally.
- Disable OpenFlow inactivity probing between ovn-controller and OVS.
OF connection is established over unix socket, which is a reliable
connection method and doesn't require additional probing.
external_ids:ovn-openflow-probe-interval configuration option for
ovn-controller no longer matters and is ignored.
- Support CIDR based MAC binding aging threshold. See ovn-nb(5) for
'mac_binding_age_threshold' for more details.
- ovn-northd-ddlog has been removed.
- A new LSP option "enable_router_port_acl" has been added to enable
conntrack for the router port whose peer is l3dgw_port if set it true.
- Enable PMTU discovery on geneve/vxlan tunnels for E/W traffic.
- Support selecting encapsulation IP based on the source/destination VIF's
settting. See ovn-controller(8) 'external_ids:ovn-encap-ip' for more
details.
- Introduce next-hop BFD availability check for OVN reroute policies.
- Add the capability to mark (through pkt.mark) incoming/outgoing packets
in the logical switch datapath according to user configured QoS rule.
- OVN Interconnection:
* INB provides basic feedback to the CMS about the ISB changes
handling status.
* IC_NB_Global now have "nb_ic_cfg" and "sb_ic_cfg" columns for
for ISB informational status.
* IC_SB_Global now have "nb_ic_cfg" column for ISB informational status.
* Availability_Zone now have "nb_ic_cfg" column for local AZ
informational status.