# Upgrade Guide — v0.19.4

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## What Changed

### Registry Visibility Sync on Reconnect

When an agent reconnects with a different visibility (e.g., was `public`, now `unlisted`), the persistent registry entry is updated to reflect the new visibility. Previously, the registry kept the old visibility, which could cause agents to appear in discovery results even after switching to unlisted.

## What to Tell Your User

- No user-facing changes. Internal fix for registry consistency.

## Summary of New Capabilities

| Capability | How to Use |
|-----------|-----------|
| Visibility sync | Automatic — registry updates when agent reconnects with different visibility |
