Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
File SystemArea: what it touches
Internal ChangesKind: in v2.1.281,
Internal ChangesSection of the release
What
To decide whether two file paths are the same regardless of capital letters, Claude Code converts both to a common case. That conversion now lowercases, then uppercases, then lowercases again. It previously only uppercased and then lowercased. This matches how Claude Code already folds file names on Windows.
Why
Paths with unusual Unicode letters, meaning characters outside plain English, are more likely to be treated as equal when they should be.
