Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
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Changelog changed

cowork/changelog

Nearest release: v2.1.280, published an hour before 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 22 Sep 2026 16:57 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 22 Sep 2026 17:07 UTC.

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33> Release notes for Claude Desktop
44 
5<Update label="v2.2553.13" description="2026-09-21">
6 Bundled Claude Code version: 2.1.280.
7 
8 **General**
9 
10 * Fixed sessions that could hang with no response after an internal error; the error is now shown.
11 * Fixed some conversations failing on every message with a "text content blocks must be non-empty" error, including after resuming.
12 
13 **Code**
14 
15 * Added `AGENTS.md` support: in a folder with no `CLAUDE.md`, Claude reads `AGENTS.md` for project instructions (not yet in third-party deployments).
16 * Fixed Claude being unable to read the output of its own background commands in sessions restricted by an administrator's allowed workspace folders.
17 
18 **Cowork**
19 
20 * No user-facing changes.
21 
22 **3P**
23 
24 * No user-facing changes.
25</Update>
26 
527<Update label="v2.2553.1" description="2026-09-18">
628 Bundled Claude Code version: 2.1.275.
729