Week 21 · May 18–22, 2026 changedwhats-new/2026-w21
Nearest release: v2.1.285, published under an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 29 Sep 2026 16:35 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 20 Oct 2026 18:37 UTC.
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33> Use auto mode on the Pro plan and with Sonnet 4.6, see which skills, subagents, and MCP servers drive your plan limits in /usage, and review diffs with the new /code-review command.
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5<div className="digest-meta">
6 <span>Releases <a href="/docs/en/changelog#2-1-143">v2.1.143 → v2.1.149</a></span>
7 <span>1 feature · May 18–22</span>
8</div>
5Releases [v2.1.143 → v2.1.149](/docs/en/changelog#2-1-143)
61 feature · May 18–22
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10<div className="digest-feature">
11 <div className="digest-feature-header">
12 <span className="digest-feature-title">Auto mode on the Pro plan</span>
13 <span className="digest-feature-pill">CLI</span>
14 </div>
8Auto mode on the Pro plan
9CLI
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16 <p className="digest-feature-lede">Auto mode is now available on the Pro plan and supports Sonnet 4.6 alongside Opus. It replaces permission prompts with background safety checks: routine actions run without interrupting you, and destructive or suspicious ones are blocked and surfaced.</p>
11Auto mode is now available on the Pro plan and supports Sonnet 4.6 alongside Opus. It replaces permission prompts with background safety checks: routine actions run without interrupting you, and destructive or suspicious ones are blocked and surfaced.
1712
18 <p className="digest-feature-try">Update Claude Code, then cycle modes with Shift+Tab; auto mode appears in the cycle once your account meets the requirements:</p>
13Update Claude Code, then cycle modes with Shift+Tab; auto mode appears in the cycle once your account meets the requirements:
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20 ```bash terminal theme={null}
21 claude update
22 ```
15```bash terminal theme={null}
16claude update
17```
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24 <p className="digest-feature-try">The command prints <code>Successfully updated</code> with the new version number, or <code>Claude Code is up to date</code> if no update is needed. Once auto mode is active, the prompt footer shows <code>auto mode on</code>.</p>
19The command prints `Successfully updated` with the new version number, or `Claude Code is up to date` if no update is needed. Once auto mode is active, the prompt footer shows `auto mode on`.
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26 <a className="digest-feature-link" href="/docs/en/permission-modes#eliminate-prompts-with-auto-mode">Auto mode requirements</a>
27</div>
21[Auto mode requirements](/docs/en/permission-modes#eliminate-prompts-with-auto-mode)
2822
29<div className="digest-wins">
30 <p className="digest-wins-title">Other wins</p>
23Other wins
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32 <div className="digest-wins-grid">
33 <div><a href="/docs/en/costs#track-your-costs"><code>/usage</code></a> now shows a per-category breakdown of what's driving your plan limits, attributing recent usage to skills, subagents, plugins, and individual MCP servers</div>
34 <div>"Extra usage" is renamed to "usage credits" across the CLI, and <code>/extra-usage</code> is now <code>/usage-credits</code>. The old name still works. The command requires signing in with your claude.ai subscription through <code>/login</code> and isn't available with API key authentication.</div>
35 <div>New <a href="/docs/en/code-review"><code>/code-review</code></a> command reports correctness bugs at a chosen effort level such as <code>/code-review high</code>, and `--comment` posts findings as inline GitHub PR comments. <code>/simplify</code> remains as a separate cleanup-only review.</div>
36 <div>Background sessions now appear in <code>/resume</code> alongside interactive ones, marked with <code>bg</code>, and sessions pinned with <code>Ctrl+T</code> in <code>claude agents</code> stay alive when idle</div>
37 <div>`claude agents --json` lists live sessions as JSON for scripting, such as status bars and session pickers</div>
38 <div>The PowerShell tool is now enabled by default on Windows for Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry users; opt out with <code>CLAUDE\_CODE\_USE\_POWERSHELL\_TOOL=0</code></div>
39 <div><code>claude plugin disable</code> now refuses when another enabled plugin depends on the target, and <code>claude plugin enable</code> force-enables transitive dependencies</div>
40 <div>The <code>/plugin</code> marketplace browse pane shows projected context cost, and the Discover and Browse screens list a plugin's commands, agents, skills, hooks, and MCP/LSP servers before installation</div>
41 <div>New <code>worktree.bgIsolation: "none"</code> setting lets background sessions edit the working copy directly without <code>EnterWorktree</code>, for repos where worktrees are impractical</div>
42 <div>Markdown output renders GFM task list checkboxes, and the <code>/diff</code> detail view scrolls with the keyboard</div>
43 <div>Status line JSON input now includes GitHub repo and PR information when detected</div>
44 <div>Enterprise: the <code>allowAllClaudeAiMcps</code> managed setting loads claude.ai cloud MCP connectors alongside <code>managed-mcp.json</code></div>
45 </div>
46</div>
25[`/usage`](/docs/en/costs#track-your-costs) now shows a per-category breakdown of what's driving your plan limits, attributing recent usage to skills, subagents, plugins, and individual MCP servers"Extra usage" is renamed to "usage credits" across the CLI, and `/extra-usage` is now `/usage-credits`. The old name still works. The command requires signing in with your claude.ai subscription through `/login` and isn't available with API key authentication.New [`/code-review`](/docs/en/code-review) command reports correctness bugs at a chosen effort level such as `/code-review high`, and `--comment` posts findings as inline GitHub PR comments. `/simplify` remains as a separate cleanup-only review\.Background sessions now appear in `/resume` alongside interactive ones, marked with `bg`, and sessions pinned with `Ctrl+T` in `claude agents` stay alive when idle`claude agents --json` lists live sessions as JSON for scripting, such as status bars and session pickersThe PowerShell tool is now enabled by default on Windows for Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry users; opt out with `CLAUDE_CODE_USE_POWERSHELL_TOOL=0``claude plugin disable` now refuses when another enabled plugin depends on the target, and `claude plugin enable` force-enables transitive dependenciesThe `/plugin` marketplace browse pane shows projected context cost, and the Discover and Browse screens list a plugin's commands, agents, skills, hooks, and MCP/LSP servers before installationNew `worktree.bgIsolation: "none"` setting lets background sessions edit the working copy directly without `EnterWorktree`, for repos where worktrees are impracticalMarkdown output renders GFM task list checkboxes, and the `/diff` detail view scrolls with the keyboardStatus line JSON input now includes GitHub repo and PR information when detectedEnterprise: the `allowAllClaudeAiMcps` managed setting loads claude.ai cloud MCP connectors alongside `managed-mcp.json`
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4827[Full changelog for v2.1.143–v2.1.149 →](/docs/en/changelog#2-1-143)
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