# Previews restart cleanly and participants can resume with less friction.

Portal 1.21-1.22 · Released 2026-08-21

AI Study previews restart from a known point, participant recovery is clearer, and embedded Studies fit better inside the surrounding product experience.

## What changed

- Restart AI Study previews from a stable state
- Recover participant sessions with clearer fallback paths
- Embed Studies with better layout and completion behavior

## Make recovery part of the participant experience

Preview and participant flows now explain what can resume, what needs a restart, and where the participant should continue.

## More in this release

### Preview and participant recovery

Failures expose a path forward.

- Added restartable AI Study previews
- Improved participant recovery and resume behavior
- Clarified fallback behavior when a session cannot continue

### Embedded Studies

Participant-facing Studies fit their host surface.

- Added embedded Study improvements
- Reduced layout overflow across supported participant views

Canonical page: https://zentrik.ai/releases/portal-1-21-1-22