You'll notice
Useful2 Signal2
Cache diagnostics say "hydrated baseline" instead of falsely implying you switched models.
What's wrong with this entry?
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What
When Claude Code explains why a prompt cache was invalidated, it now prints hydrated baseline if the thing it compared against was reconstructed at startup rather than an actual earlier request, instead of naming a previous model or removed beta flags.
Evidence
hydrated baseline
Strings lifted out of the shipped bundle, so the claim above can be checked against them.