I noticed in upgrading to livekit-agents 1.3.9 my realtime models have lost all context set with

_self_.agent.update_chat_ctx

. Is this intentional update of how context is handled in the update or is there a bug here?

Thanks for reaching out, Riza. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

I am using grok realtime and openai realtime. After downgrading to 1.3.8, the context is working as expected. code snippet:

chat_ctx = ChatContext(items=[ChatMessages])
await self.agent.update_chat_ctx(chat_ctx)

self.agent = AvatarAgent(
            ctx=self.ctx,
            llm=new_llm,
            instructions="",
            tts=new_tts,
            stt=new_stt,
            vad=new_vad,
            turn_detection=new_turn_detector,
        )

  
        self.session.update_agent(self.agent)

Thanks — I’ve reviewed what you sent (grok + OpenAI realtime, code snippet, and that downgrading to 1.3.8 restores expected behavior). This looks like a regression in 1.3.9 where context set with

self.agent.update_chat_ctx

isn’t being preserved when you replace the agent instance (

self.agent = AvatarAgent(...)

+

self.session.update_agent(...)

). The behavior you observed — working in 1.3.8 and broken in 1.3.9 — strongly indicates it’s not an intended change. Two practical workarounds you can use immediately: • After creating the new

AvatarAgent

, re-apply the chat context before calling `self.session.update_agent(...)`: a. Create

self.agent = AvatarAgent(...)

b. Call

await self.agent.update_chat_ctx(chat_ctx)

c. Then

self.session.update_agent(self.agent)

• Or preserve the prior agent’s

chat_ctx

and pass it into the new agent on construction (if your agent constructor accepts it) so the context is available immediately. Please continue using 1.3.8 as a temporary workaround if those changes aren’t convenient. If you’d like, share logs around

update_chat_ctx

and

session.update_agent

calls and I can help verify whether the context is being dropped at agent construction or during session handoff. Sources: Realtime model plugins | LiveKit Docs | Pipeline nodes and hooks | LiveKit docs | Agents and handoffs | LiveKit docs