What
Claude Code computes a fingerprint of a file's contents, called a hash, so it can tell whether the file has changed. Before computing it, Claude Code turns Windows-style line endings into the plain kind. It now does this with a different method.
Why
The fingerprints are expected to come out the same as before. Only the way they are computed has changed.
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The writer flagged doubt
It has not been confirmed that the new method always gives exactly the same fingerprint.