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 29 Sep 2026 16:37 UTC.
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3232 <div className="digest-wins-grid">
3333 <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>
3434 <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 <code>--comment</code> posts findings as inline GitHub PR comments. <code>/simplify</code> remains as a separate cleanup-only review.</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>
3636 <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><code>claude agents --json</code> lists live sessions as JSON for scripting, such as status bars and session pickers</div>
37 <div>`claude agents --json` lists live sessions as JSON for scripting, such as status bars and session pickers</div>
3838 <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>
3939 <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>
4040 <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>
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