Changelog changedcowork/changelog
Nearest release: v2.1.284, published 3 hours 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 28 Sep 2026 20:19 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 28 Sep 2026 20:37 UTC.
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33> Release notes for Claude Desktop
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5<Update label="v2.9939.4" description="2026-09-27">
6 Bundled Claude Code version: 2.1.284.
7
8 **General**
9
10 * Fixed sessions failing on every message with an API error caused by certain web search results or earlier extended thinking in the conversation's history.
11
12 **Code**
13
14 * Fixed the warning about a changed organization not appearing in sessions.
15
16 **Cowork**
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18 * No user-facing changes.
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20 **3P**
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22 * No user-facing changes.
23</Update>
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525<Update label="v2.9939.2" description="2026-09-24">
626 Bundled Claude Code version: 2.1.281.
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