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Claude Code v2.1.278：auto mode 默认改用服务端分类器
Claude Code 发布 v2.1.278。该版本将 Claude API 与 Enterprise 用户，以及 Bedrock、Vertex、Foundry 和网关上的 auto mode 默认切换为服务端分类器，且不收取分类器开销；在 Bedrock、Vertex、Foundry 和网关上可通过 CLAUDE_CODE_AUTO_MODE_SERVER=0 退出，回退到计费模式时会给出警告。/status 新增 Auto mode server 行，用于显示当前会话的 auto mode 分类器是否运行在服务端。
AI推荐理由 官方 release notes，事实明确：Claude Code v2.1.278 将 Claude API、Enterprise 用户以及 Bedrock、Vertex、Foundry 和网关上的 auto mode 默认改为服务端分类器，且不收取分类器开销，Bedrock/Vertex/Foundry/网关可用 CLAUDE_CODE_AUTO_MODE_SERVER=0 退出，计费回退时会警告；/status 新增 Auto mode server 行。属于面向开发者的具体配置与计费行为变更，但为小版本迭代，影响范围有限，无性能或能力层面的新信息。
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正文
Official release notes (https://github.com/anthropics/claude-code/releases/tag/v2.1.278)
## What's changed
- Changed auto mode for Claude API and Enterprise users, and on Bedrock, Vertex, Foundry and gateways, to default to the server-side classifier, which does not charge for classifier overhead (`CLAUDE_CODE_AUTO_MODE_SERVER=0` opts out on Bedrock, Vertex, Foundry and gateways); warns on billed fallback. See https://code.claude.com/docs/en/auto-mode-classifier-billing
- Added an `Auto mode server` row to `/status` showing whether this session's auto mode classifier runs on the server
Repository README (current repository documentation, not release changes)
# Claude Code
 [![npm]](https://www.npmjs.com/package/@anthropic-ai/claude-code)
[npm]: https://img.shields.io/npm/v/@anthropic-ai/claude-code.svg?style=flat-square
Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows -- all through natural language commands. Use it in your terminal, IDE, or tag @claude on Github.
**Learn more in the [official documentation](https://code.claude.com/docs/en/overview)**.
## Get started
> [!NOTE]
> Installation via npm is deprecated. Use one of the recommended methods below.
For more installation options, uninstall steps, and troubleshooting, see the [setup documentation](https://code.claude.com/docs/en/setup).
1. Install Claude Code:
**MacOS/Linux (Recommended):**
```bash
curl -fsSL https://claude.ai/install.sh | bash
```
**Homebrew (MacOS/Linux):**
```bash
brew install --cask claude-code
```
**Windows (Recommended):**
```powershell
irm https://claude.ai/install.ps1 | iex
```
**WinGet (Windows):**
```powershell
winget install Anthropic.ClaudeCode
```
**NPM (Deprecated):**
```bash
npm install -g @anthropic-ai/claude-code
```
2. Navigate to your project directory and run `claude`.
## Plugins
This repository includes several Claude Code plugins that extend functionality with custom commands and agents. See the [plugins directory](./plugins/README.md) for detailed documentation on available plugins.
## Reporting Bugs
We welcome your feedback. Use the `/bug` command to report issues directly within Claude Code, or file a [GitHub issue](https://github.com/anthropics/claude-code/issues).
## Connect on Discord
Join the [Claude Developers Discord](https://anthropic.com/discord) to connect with other developers using Claude Code. Get help, share feedback, and discuss your projects with the community.
## Data collection, usage, and retention
When you use Claude Code, we collect feedback, which includes usage data (such as code acceptance or rejections), associated conversation data, and user feedback submitted via the `/bug` command.
### How we use your data
See our [data usage policies](https://code.claude.com/docs/en/data-usage).
### Privacy safeguards
We have implemented several safeguards to protect your data, including limited retention periods for sensitive information, restricted access to user session data, and clear policies against using feedback for model training.
For full details, please review our [Commercial Terms of Service](https://www.anthropic.com/legal/commercial-terms) and [Privacy Policy](https://www.anthropic.com/legal/privacy).