/consumer_groups 404 on Kong Gateway OSS

Hey all!

I’ve been trying to set up consumer groups, but all /consumer_groups admin API routes return 404, and the plugin configuration UI in Kong Manager does not contain the option for consumer group selection.

curl http://KONG_IP:8001/consumer_groups                   
{"message":"Not found"}

Other routes, such as /consumers, work fine:

curl http://KONG_IP:8001/consumer_groups                   
{"data":[...]}

Curling http://KONG_IP:8001/ reveals we’re on version 3.9.1, community edition.

I scoured the internet and docs but couldn’t find anything related to this. Am I missing something? Are consumer groups actually an enterprise feature?

Thanks in advance!