You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
PermissionsArea: what it touches
ImprovementsKind: in v2.1.265,
ImprovementsSection of the release
What
Claude Code's checks for invisible or hidden characters now also flag codepoint 94180 (U+16FE4), alongside characters it already blocked such as the zero-width no-break space (65279) and the tag character range (917504-917999).
Why
This closes another way invisible characters could be smuggled into text, since such characters can be used to hide instructions or content that isn't visibly displayed.
