> ## Documentation Index
> Fetch the complete documentation index at: https://chatcli.edilsonfreitas.com/llms.txt
> Use this file to discover all available pages before exploring further.

# v1.210.0

> Opus 5.5 and the September model launches, self-healing Claude Code fingerprint, refusals name their category

<div className="cc-release-meta">
  <span>Released September 24, 2026</span>
  <span>1 new feature</span>
  <a href="https://github.com/diillson/chatcli/releases/tag/v1.210.0">GitHub release</a>
  <a href="https://github.com/diillson/chatcli/compare/v1.209.0...v1.210.0">Compare changes</a>
</div>

## New features

* <a className="cc-scope" href="/providers/supported-models">catalog</a> Opus 5.5 and the September model launches, self-healing Claude Code fingerprint, refusals name their category <span className="cc-refs">[#1647](https://github.com/diillson/chatcli/issues/1647) · [7fb88b2](https://github.com/diillson/chatcli/commit/7fb88b2fcd1c12323cbd6e052a25a6a7a4dd78f7)</span>

***

<CardGroup cols={2}>
  <Card title="Newer release: v1.210.1" icon="arrow-left" href="/releases/1.210.1">
    a describe's subject no longer becomes a tool call, and an empty argv never panics a plugin
  </Card>

  <Card title="Previous release: v1.209.0" icon="arrow-right" href="/releases/1.209.0">
    a refused turn falls back to a sibling model, and skill evolution shows on the dashboard
  </Card>
</CardGroup>


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.