The release documentation says-
You must route chats with Omni-Channel to chat in Lightning Experience. Make sure you have Omni-Channel ready for Lightning Experience and have set up your chat button to route with Omni-Channel. Considerations for Omni-Channel routing for chats apply.
Does that mean to be able to use Live-agent in lightning console , omni-channel must be configured and enabled ? If I don't have need for omni-channel but do need live-agent, does that mean i have to stick with Service Console Classic ?