Changelog

If your agents use a Stable model, they moved to the newest Claude models over the past few weeks without you changing a setting. And you can now open a real conversation and see what the agent did.

🧠 New models, already running

Claude 5.5 is the new Stable. Claude Opus 5.5, Sonnet 5.5 and Haiku 5.5 now back the Stable rows in the model picker. Agents on a Stable model are already on 5.5. Agents pinned to a specific version stay where you put them. How Stable and pinned versions work.

GPT-6.1 Sol. On Claude Agent SDK agents, GPT Sol · Stable now runs GPT-6.1 Sol.

Gemini 3.8 Flash. Claude Agent SDK agents offer Gemini 3.8 Flash in place of 3.7 Flash. Agents already set to 3.7 keep working.

Claude Fable 5.1. Now in the model picker for agents that run on your own Anthropic API key.

Check yours: open an agent, go to Settings, and look at Model.

🔍 See your agents' conversations in Activity

Each agent has a new Insights → Activity tab: a feed of real conversations across your channels. Open one to see the trace behind the reply, step by step, including tool calls. Learn more.

Want the cost side too? Every metered call is now exportable from the API with an organization API key, and entries carry a trace id so you can group a turn. Credits API.

Export credit usage, call by call
curl -H "Authorization: Bearer $RUNBEAR_API_KEY" \
  "https://api.runbear.io/v1/credits/usage/entries?from=2026-10-01T00:00:00Z&to=2026-10-13T00:00:00Z"

⚡ Also shipped

A faster editor. Instructions is now an outline with an inline editor and Cmd/Ctrl+S. Tools is a list with a switch for each action. Instructions, Tools.

More Slack options on the Claude Agent SDK runtime. Reply without @mention, and Trigger by keyword for top-level posts. Runtimes.

Your own Slack welcome. Custom Slack bots can set their own assistant pane greeting and suggested prompts, in any language.

Quieter replies when you want them. Where the agent supports them, Agent Settings has switches for Show tool activity and Choice Buttons.

Clearer knowledge sync. Drive and SharePoint files that can't be indexed show as skipped with a reason, and .md, .json and code files inside a selected folder now sync. Disconnecting a source erases its indexed content.

Connectors. A native Algolia connector, an API key option for Linear, per-action switches for 13 more connectors, and Zendesk agents now see the attachments on a new ticket.

Private channels for scheduled jobs. Post to a private Slack channel by its channel ID.