Which version of Livekit should I use to not have any problems?

Getting Started
1

I wanted to build an AI Agent using phonic, I was on livekit-agents 1.5.1 and it didn’t work, then changed to 5.1.8 and it worked locally, tried to replace my production agent from openai to phonic and it didn’t work, even locally, went back to openai and it still doesn’t work locally so yeah I don’t know what to do. I am lost with all of these versions. I had this in production : /usr/local/lib/python3.13/site-packages/phonic/core/websocket_compat.py:4: DeprecationWarning: websockets.exceptions.InvalidStatusCode is deprecated
from websockets.exceptions import InvalidStatusCode as InvalidWebSocketStatus # type: ignore[attr-defined]
INFO:livekit.agents:process initialized
{“message”: “process initialized”, “level”: “INFO”, “name”: “livekit.agents”, “pid”: 311, “elapsed_time”: 1.96, “timestamp”: “2026-05-12T00:46:30.599902+00:00”}
ERROR:livekit.agents:AgentSession is closing due to unrecoverable error

And I don’t know if it’s a problem with the plugins. I have

livekit-plugins-openai : 1.5.8

livekit-plugins-noise-cancellation : 0.2.5

livekit-plugins-ai-coustics : 0.2.7

I use ai-coustics as of the Livekit quickstart

2

The short answer is we always recommend to use the latest version of LiveKit and any required plugins for the best experience.

For this type of question, I usually suggest to start from scratch and follow Voice AI quickstart | LiveKit Documentation , then ask which step of that process is giving errors.

I do see multiple projects deployed and working which are associated with your email address however?