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# Model Management and Access Control

> Manage model retirements, document model behavior, and control access to task run results.

## What's New

### Model Retirement Management

Manage retired models and migrate affected tasks to replacement models.

### Fine-Grained Task Run Permissions

Better control over who can access task execution results with granular permissions, perfect for multi-tenant applications and team collaboration.

### Model Comments and Notes

Add performance insights and notes to models, helping your team share knowledge about which models work best for specific use cases.

## Improvements

* Better handling of model timeouts and errors
* Enhanced reliability for trial accounts

## Current documentation

[Model governance](/docs/production/model-governance) · [Authentication](/docs/api/authentication)