2026-04-29 – 2026-05-05

Failure feedback in the agent UI - when a NextGen step fails or has to retry, the agent now surfaces what happened inline. Failed steps appear with a recovering (orange) or terminal (red) state, and a "What happened?" accordion explains the failure in plain language. The Actions & tasks block can also be collapsed.
Document Analyst card unified - the separate Doc Analyst and KB Doc Analyst cards have been merged into a single Document Analyst card. In the Configure modal, you can now choose whether the agent analyzes user-attached files, the agent's knowledge base documents, or both. No functionality change - just less to set up. Applies to both legacy and NextGen agents.
Vision processing for image pages in the knowledge base - when Document Analyst targets a knowledge-base page that's an image, the agent now runs a fresh vision pass on the original asset (with the user's question and conversation context) instead of relying on stored OCR. Unlocks deep, in-question analysis of complex schematics, diagrams, and other image-heavy documents stored in the agent's knowledge base.
TODO.md no longer treated as a real file - the planner and replanner now recognize the [**TODO.md**] marker (used by the UI to render a clickable to-do chip) as a UI element, so the agent no longer wastes steps trying to look it up in the knowledge base.

PDF Viewer demo from Citations settings - a new "Play PDF viewer demo" action in Chatbot Settings → Citations opens an in-context preview of the PDF citations experience.
Persona character limit shown live - the persona editor now shows the over-limit error as you type and disables Save until you're back under the limit, instead of waiting for a server validation error on save.
Cleaner Ask page title - the page title now reads Ask • [Agent Name] (centered dot separator) and no longer duplicates the agent name in the heading.
End-user conversation history is smoother - if a teammate starts chatting as a guest and then logs in, those earlier conversations now carry over to their account. The history panel slides in cleanly and stays open when you switch between conversations, and subdomain share-links now keep the history panel accessible when history is enabled.
Hybrid search auto-enables with Advanced Numeric Search - turning on Advanced Numeric Search at agent creation (or via the patch endpoint) now automatically enables hybrid search, since Advanced Numeric Search depends on it.
Claude 3.5 Sonnet has been retired. All agents previously using Claude 3.5 Sonnet have been automatically migrated to Claude 4.6 Sonnet. No action needed.

API reference rewrite across Tasks, Sources, Pages, and Conversations - cleaner descriptions, consistent NextGen terminology, per-value enum documentation for agent_capability, crawl_status, index_status, data_refresh_frequency, and format, plus accurate behaviour for poll-once-then-404 task results, file size limits on POST /sources, and the labels[] filter syntax on conversation send-message.
is_advanced_numeric_search removed from the public API - this setting is web-only by design. It is no longer accepted on POST /api/v1/projects or exposed in OpenAPI schemas.

Fixed the issue where the Smart Tasks Configure modal save button silently did nothing. Settings now save and the success toast appears.
Fixed the issue where editing an already-enabled tool's configuration (e.g. tweaking a custom action) returned a "max enabled tools" error if you were at your plan's limit. The limit now only applies when actually enabling a new tool.
Fixed the Confluence spaces selector showing a broken-image artifact when an external space icon failed to load. The fallback stack icon now renders cleanly.
Fixed Multi-Agent appearing in the Quick Start section for brand-new users. Multi-Agent only makes sense when you have existing agents, so it's now hidden until you do.
Fixed the post-subscription redirect sending active teams to the demo-agent screen after re-subscribing. Active teams now stay on the normal billing flow; only truly empty dashboards get the onboarding redirect.
Fixed the Conversation Insights agentic-actions filter showing raw internal keys (e.g. expensive_model_claude-4.6-sonnet-thinking) as filter labels. Expensive-model usage now displays as Added Cost: Claude 4.6 Sonnet Reasoning.
Fixed the NextGen file manager auto-opening on mobile as soon as the first file in a conversation was generated. It no longer pops open on small screens.
Fixed an edge case on Claude where the NextGen agent could re-process the user's message instead of progressing through the plan.