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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.267 ·

Artifact file uploads now reject replacement-character/unpaired-surrogate text

Artifact text file uploads are now rejected if they contain the Unicode replacement character or an unpaired surrogate

You'll notice Bug Fixes
JSON All of v2.1.267
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
Bug FixesKind: in v2.1.267,
Bug FixesSection of the release
What

When a text-type file is validated for publishing to an Artifact, content containing the Unicode replacement character (U+FFFD, the symbol that appears when text can't be decoded properly) or an unpaired surrogate (a broken piece of a multi-part character) is now rejected with a specific error. For HTML files, the error also explains that the character should be escaped as � instead.

Why

This catches text corruption before it's published, rather than letting broken or unreadable characters make it into a live artifact.

See this entry in the whole of v2.1.267 →

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