Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
PermissionsArea: what it touches
Internal ChangesKind: in v2.1.271,
Internal ChangesSection of the release
What
Claude Code's check for bidirectional control characters (invisible characters that can reorder how text displays, sometimes used to disguise malicious text) now loops through a table of character code ranges instead of testing three specific hardcoded conditions.
Why
This makes the detection easier to extend with new ranges going forward, without changing what a user experiences directly.
