# Claude Code v2.1.322

> Claude Code v2.1.322, released 10 Nov 2026 (2026-11-10). 6 entries read out of the shipped bundle. Unofficial, and not affiliated with Anthropic.

[Web version](https://changelogs.core-directive.com/v/2.1.322)

You can now use fast mode on Google Vertex AI for models that support it there. On Vertex, fast mode only works when the model's region is global, us or eu. If the region does not fit, a message tells you which setting to change. A saved `fastMode` setting is ignored on Vertex, so you turn it on with `/fast` each session. Outside the Anthropic API, fast mode messages now use wording that does not assume Anthropic or Opus. Setting `CLAUDE_CODE_DISABLE_BG_EXIT_HANDOFF` or `CLAUDE_DISABLE_ADOPT` stops Claude Code from handing over background work when you exit.

Turning fast mode on now saves your setting against the right model. Claude Code first looks up the model that fast mode will run on. It then uses that model when it writes the setting.

## Sections

Each section is its own markdown document of whole entries, in pages of about 40 KB. The whole release in one document is [full.md](https://changelogs.core-directive.com/v/2.1.322/full.md).

- [What probably matters to you](https://changelogs.core-directive.com/v/2.1.322/what-probably-matters-to-you.md): 2 entries
- [Improvements](https://changelogs.core-directive.com/v/2.1.322/improvements.md): 2 entries
- [Bug Fixes](https://changelogs.core-directive.com/v/2.1.322/bug-fixes.md): 1 entry
- [Internal Changes](https://changelogs.core-directive.com/v/2.1.322/internal-changes.md): 1 entry

## What probably matters to you

One line each. The section's own page has them in full.

- [Fast mode extended to Vertex AI, session-only and limited to some regions](https://changelogs.core-directive.com/v/2.1.322/e/fast-mode-extended-to-vertex-ai-keyed-on-a-new-vertex-fast.json): Fast mode can now run on Vertex AI for models that support it, only for the current session, in regions global, us or eu, with new wording and retry handling
- [Either of two variables turns off handing over background work on exit](https://changelogs.core-directive.com/v/2.1.322/e/background-exit-handoff-predicate-now-depends-on-an-adopt-ki.json): Background exit handoff stays on unless `CLAUDE_CODE_DISABLE_BG_EXIT_HANDOFF` or `CLAUDE_DISABLE_ADOPT` is set