You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
ImprovementsKind: in v2.1.242,
ImprovementsSection of the release
What
When Claude cannot subscribe to or watch a file for updates, the message it sees now includes the server's own explanation and detail alongside the reason code, and the "no subscription" note prints the reason in parentheses next to the URL. Publishing and reading still work in that state.
Evidence
could not register one; publishing and reading still work.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.