Certainly,

Below all of the information about the charm versions and spaces for them.
Please let me know if you need any other information.

root@juju-playground:~# juju status ovn*
Model             Controller           Cloud/Region      Version  SLA          Timestamp
dsi-r1-openstack  dsi-juju-controller  dsi-maas/default  2.7.6    unsupported  11:07:37Z

App               Version  Status  Scale  Charm             Store       Rev  OS      Notes
nova-compute      21.0.0   active      2  nova-compute      jujucharms  316  ubuntu
ovn-central       20.03.0  active      3  ovn-central       jujucharms    0  ubuntu
ovn-chassis       20.03.0  active      2  ovn-chassis       jujucharms    0  ubuntu

Unit                   Workload  Agent  Machine  Public address  Ports              Message
nova-compute/0*        active    idle   7        10.80.0.11                         Unit is ready
  ovn-chassis/0*       active    idle            10.80.0.11                         Unit is ready
nova-compute/1         active    idle   8        10.80.0.12                         Unit is ready
  ovn-chassis/1        active    idle            10.80.0.12                         Unit is ready
ovn-central/0          active    idle   0/lxd/4  172.30.200.46   6641/tcp,6642/tcp  Unit is ready
ovn-central/1          active    idle   1/lxd/5  172.30.200.45   6641/tcp,6642/tcp  Unit is ready (northd: active)
ovn-central/2*         active    idle   2/lxd/3  172.30.200.39   6641/tcp,6642/tcp  Unit is ready (leader: ovnnb_db, ovnsb_db)

Machine  State    DNS            Inst id              Series  AZ      Message
0        started  10.80.0.10     rh-09                focal   SFO-02  Deployed
0/lxd/4  started  172.30.200.46  juju-92b05d-0-lxd-4  focal   SFO-02  Container started
1        started  10.80.0.1      rh-08                focal   SFO-02  Deployed
1/lxd/5  started  172.30.200.45  juju-92b05d-1-lxd-5  focal   SFO-02  Container started
2        started  10.80.0.2      rh-07                focal   SFO-02  Deployed
2/lxd/3  started  172.30.200.39  juju-92b05d-2-lxd-3  focal   SFO-02  Container started
7        started  10.80.0.11     od-13                focal   SFO-02  Deployed
8        started  10.80.0.12     od-14                focal   SFO-02  Deployed


root@juju-playground:~# juju show-application ovn-chassis
ovn-chassis:
  charm: ovn-chassis
  series: focal
  principal: false
  exposed: false
  remote: false
  endpoint-bindings:
    "": dsi
    amqp: dsi
    certificates: dsi
    data: dsi
    juju-info: dsi
    nova-compute: dsi
    ovsdb: dsi
    ovsdb-subordinate: dsi



root@juju-playground:~# juju show-application ovn-central
ovn-central:
  charm: ovn-central
  series: focal
  principal: true
  exposed: false
  remote: false
  endpoint-bindings:
    "": dsi
    certificates: dsi
    ovsdb: dsi
    ovsdb-cms: dsi
    ovsdb-peer: dsi
    ovsdb-server: dsi


root@juju-playground:~# juju spaces
Name        Space ID  Subnets
alpha       0
dsi         1         172.30.0.0/16
                      fd51:0:d51:30::/64
pxe         3         10.80.0.0/16
r1-os-data  4         172.17.0.0/16
storage     2         172.18.0.0/16
undefined   6         10.1.0.0/16
                      146.169.32.0/23
                      146.169.35.0/24
                      192.168.0.0/16
                      2a0c:5bc0:40:119a::/64
vms         5         172.31.0.0/16
                      fd51:0:d51:31::/64