Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
InternalsArea: what it touches
Internal ChangesKind: in v2.1.248,
Internal ChangesSection of the release
What
The storage layer gained explicit tables of which names are streams and which are scopes, with a specific message for each misuse, plus allow-lists of permitted directory names and files. They document the layout: task ids, mailbox teammates and cache ids are individual keys, not scopes you can narrow by.
Evidence
names one task value, a key, not a scope: a list scope narrows with listId only
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
