What's New

A big two-week stretch: a fresh set of integrations, the first slice of Generative UI, an Agent Builder that finally works on-prem, automatic preview environments for every change, plus a long list of polish and fixes from across the team.

Big Features

Generative UI

We've started shipping Generative UI - agents can now render purpose-built React components (charts, forms, cards) instead of just text or markdown directly in the chat interface.

Canvas: CSV, Slides, and DOCX

Canvas keeps growing into a real document surface:

- CSV editing with a proper data grid - sortable, filterable, no manual UI wiring

- Slides (v0) - ask the agent to generate a deck and it shows up in canvas, ready to refine

- DOCX preview - drop a Word file into canvas and see it rendered inline

- Better HTML→PDF - we now use the browser's native print path, so styles and layout actually survive the export

Microsoft Teams Bot - Triggers & Bidirectional Chat

The Teams integration grew up! We added a full bot runtime with credentials, polling, threaded replies, member-added triggers, and self-message filtering - so an agent can listen to Teams conversations and reply in-thread the same way it does in Slack. New chat-message and channel-message triggers use new methods to improve latency in chat.

MCP Servers — Redesigned

The MCP servers UI got a full redesign with a shared picker popover, and the underlying protocol client was rebuilt for reuse across the product. Cleaner today, easier to extend tomorrow.

New Integrations & Actions

Zoom — transcript integration
Lightfield CRM — new connector
Freshservice — new ITSM integration
Egnyte — OAuth2 connector
Azure Files — service principal connector
HubSpot — engagement actions
Smartsheet — attachment upload + dynamic dropdowns
Slack — Get Thread Context action
SharePoint — Get Sharing Link for files
Google Sheets — Append Row and Upsert Row actions
Google Drive — Delete, Move, and Share with full drive scope
Cal.com — new actions
Microsoft 365 Groups — add / remove / list users
PostgreSQL — DDL action and CTE support in Query
Code Node — file output support
Knowledge Base actions — List KBs, Read File, and Explore Folders restored to search
Google — Gemini 3.1 Flash-Lite added, Gemma 4 31B added

Quality of Life

Better defaults around projects and templates.

Project nodes now skip the current workflow in dropdowns and validate against direct self-references, so you can't accidentally make a project call itself. Templates show tooltips on badge avatars and default values on scheduled executions

More polished editor.

Dangling edges no longer appear when moving a node, the node menu stops mis-inserting disconnected nodes, the Selected Nodes toolbar got a copy button, and tool tooltips show their tool name in read-only mode. Profile pictures are squared, and the analytics page is more legible in dark mode.

Knowledge Base.

Pinned folders stay visible regardless of filters or pagination.

Connections.

Each connection row shows the connected email, Edit Credentials is available for all non-OAuth methods, and OAuth flows can prompt for user-specified fields before and after the redirect.

Bug Fixes:

Triggers with uppercase header names (Zendesk On Ticket Created and friends) now match correctly
Human-in-the-loop pause detection — Slack Send and Wait in trigger-invoked workflows now actually waits
KB citations and document names now use Stack AI's identifiers, so cited filenames match what's in your Knowledge Base
KB latency spikes caused by a deprecated metadata-filter model are gone
Salesforce infinite recursion when listing certain object types
MCP OAuth with refresh tokens disabled now works; PKCE compatibility also restored
Send HTTP Request now accepts array request bodies
Excel: Data to Table accepts a variable input for sheet_name; Create Table returns the created table name
Bedrock image transport — image URLs are converted to base64 before send
Parallel tool calls in the OpenAI Responses API now resolve correctly
SharePoint thread-safety fix for async operations
Outlook search optimized to avoid timeouts
HubSpot Search Deals — fixed 415 error and query input validation
Canvas — corrected CSV rendering, fixed file uploads, and stopped CSS from being stripped in HTML iframes
Terminal — stderr warnings hidden when commands succeed
Microsoft Teams dropdowns — channel and chat selectors now react to dependent fields
Trigger creation restored for orgs who had previously seen issues
JSON copy strips external quotes when copying JSON values from outputs