You'll notice
Useful3 Signal3
Attaching to a session running a different build now falls back to older keyboard handling.
What's wrong with this entry?
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What
When you attach to a running session, the acknowledgement now includes the worker's Claude Code version. If it differs from your build, the client switches to a legacy keyboard mode instead of assuming both ends speak the current key sequences.
Details
- Runs on every attach; there is no flag.
Evidence
legacyKitty
Strings lifted out of the shipped bundle, so the claim above can be checked against them.