July 14th, 2026

June was a big month for the agent builder. The conversations inbox has been rebuilt as a master-detail view, per-agent analytics went live, and you can now build RCS rich cards right in the template editor. Belle picked up @-mentions, the builder gained dedicated Version, Settings, and Log tabs, and a new node frequency heat map shows you when each step in a workflow actually runs. Plenty of smaller improvements landed across messaging, voice, contacts, and dark mode too.
Send Message now falls back from RCS to SMS automatically. When a Send Message step tries to deliver RCS to a number that can't receive it, the message goes out as SMS instead so it still reaches the contact. You can also send a real test message from a step and see exactly which channel was used, with a clear warning whenever a fallback happened.
The agent builder now has dedicated Version, Settings, and Log tabs. You can review version history, adjust an agent's settings, and read its run logs without leaving the builder, with a refresh button to pull the latest logs on demand.
A new node frequency heat map shows when each step runs. See how often each step in a workflow fires across a calendar range you pick, with a read-only view for sharing. Voicemail edge cases in the frequency counts have been cleaned up.
Agent analytics are now live. Each agent has its own charts, including RCS click charts broken down by attribution. Chart granularity now behaves correctly when you pin a range, and a few color and axis-label issues (including black-on-black labels in dark mode) are fixed.
Add multiple tools of the same type to a single agent. The old one-per-type limit is gone, and when two tools share a name the newer one now hides the older version so your tool list stays clean. Search ranking in the Add Tool menu is also sharper.
Set a fallback LLM for your agents. If the primary model isn't available, the agent falls back to a model you configure instead of failing.
Clone multiple workflow nodes at once. Select several steps and duplicate them together. Cloned steps now keep their own schema instead of pointing at the original.
Edit request bodies and response schemas as JSON. The HTTP request step has a JSON code editor mode, response schemas are editable directly, and a View JSON button on the design toolbar lets you inspect the full agent definition.
Rename agents inline. A pencil icon in the tab view lets you rename an agent in place.
React when a transferred call ends. Voice agents can now use an External Transfer Ended trigger in the designer to continue a flow after a handoff wraps up.
Belle now supports @-mentions. Mention agents directly in Belle chat with inline autocomplete, and mention markup is cleaned out of titles automatically.
The conversations inbox has been redesigned as a master-detail split. The conversation list and the open conversation now sit side by side. Message previews are more readable, you can delete messages, and scrolling and selection are noticeably smoother after removing heavy animations and stopping unread-count requests from piling up.
Jump from an agent log straight to the message that triggered it. Agent logs now deep-link to the exact incoming message that started a run.
Build RCS rich cards in the template editor. A new rich card builder lets you assemble RCS cards in the global template editor, complete with a lock-screen notification preview and a tester to see how a card renders before you send it.
Templates are easier to browse. The templates list now matches the agents page styling and rows are clickable to open the editor.
The Send Message action gained attachments, per-channel attribution, and suggestions. Attach files to outgoing messages, set attribution per channel with a typeable input, preview RCS content, and get message suggestions as you build.
Webhook event picker adds link clicks and opt-outs. You can now trigger on link click and opt-out events when configuring webhooks.
Collect images and info from contacts. Agents can request an image upload from a contact, and info-request form fields now prefill with sensible defaults. List pickers and forms also support images.
Better contact matching. Agents that create or look up contacts now use improved matching so the right record is found or updated more reliably.