Octavia has never required any specific features that are newer than approximately the Liberty release of Openstack. I can say that I have successfully run Octavia from Rocky on an otherwise fully Liberty cloud. So, it should work fine. I'm fact, I generally recommend running the newest possible version of Octavia, regardless of the versions of the rest of your services. :)

Note: Liberty is just my best guess based on experience, it's possible that it would work on Juno or Kilo but this has not been tested (to my knowledge).

    --Adam


On Wed, Apr 24, 2019, 07:22 Volodymyr Litovka <doka@ytechteam.com> wrote:
Dear colleagues,

whether Octavia 4.x can be used with Rocky? Whether it makes sense (I
mean, whether Octavia's new features are tied to Stein's features)?

Thank you.

--
Volodymyr Litovka
   "Vision without Execution is Hallucination." -- Thomas Edison