---
title: "STAIR 1.5.1 Release Notes"
group: "Release notes"
groupOrder: 6
order: 6
---
Version 1.5.1 introduces workflow automation through STAIR Flow and expands conversation management and collaboration in STAIR Chat.

Released August 13, 2026.

## Security and Governance

- **PII data masking:** Masking of personally identifiable information (PII) can be configured at the agent level.

## Agents and Automation

- **STAIR Flow:** Create, manage, and execute workflows to automate business processes.
- **Scheduler:** Configure schedules to automate recurring workflow execution.

## Chat and Collaboration

- **Execution transparency:** STAIR Chat shows subagent names within conversations during the execution process.
- **Conversation management:** Conversations can be organized into folders. Public links allow conversations to be shared. Status indicators show which conversations are in progress and which have completed with unread results.

## Platform Administration

- **Platform customization:** Organizations can configure their platform logo. Shared preferences align the user experience across STAIR Platform and STAIR Chat.

## FAQ

### What is new in STAIR 1.5.1?

STAIR 1.5.1 adds sub-agent streaming, conversation folders, public sharing and status indicators to STAIR Chat. It also introduces STAIR Flow workflows, the Scheduler for workflows and PII entity type selection for agents.

### Which user does a workflow run as?

Since STAIR 1.5.1, a workflow runs under the user who triggered it instead of root.

### What can the STAIR 1.5.1 Scheduler schedule?

The first phase of the Scheduler in STAIR 1.5.1 schedules workflows.

## Related

- [STAIR Chat](/docs/stair-chat/llm.md)
- [Agent Workflows](/docs/agent-workflows/llm.md)
- [Scheduled Agent Runs](/docs/scheduled-agent-runs/llm.md)
- [Security and Access Control](/docs/security-and-access-control/llm.md)
- [User Preferences](/docs/user-preferences/llm.md)