The install/runtime compatibility floor moves from 0.1.1-rc2+ and
0.1.2-alpha2+ to 0.1.2-rc.1+. The 0.1.1 line and the 0.1.2-alpha previews
leave the support matrix, so every pre-0.1.2 fallback they existed for is
removed outright:
- client history: drop the legacy `connection.api.sessions.history` face,
the `result`-nested envelope, and the `events` rows field — the gateway
`remote.session.page` face and its ClientResult envelope are the only
served shapes.
- client image loader: drop the pre-0.1.2 `conversation.resolveImage` face;
`uiConversation.imageUrl` only.
- client node join: drop the pre-0.1.2 `useSession.nodes` seat;
`useChat`'s ChatSnapshot `legacy.nodes` only (UseSessionLike removed).
- tests/baselines.ts: single baseline `v0.1.2-rc.1`; HostSeam dropped (the
registry generation hard-codes header-passing init and seq-0 eager
seeding, now mirrored with the exact `init(header, inheritedEventCount)`
arity); ClientSeam slimmed to the consumed probes.
- deps: devDeps re-pinned to the 0.1.2-rc.1 generation (types compile
against the real rc.1 surfaces); cordis ^4.0.2 and schemastery ^3.18.2
per the rc.1 peer requirements; dsh-scope/dsh-invariants declared as dev
deps; peer floors >=0.1.2-rc.1; dshReleases table trimmed.
- release workflow fetches only the dsh-v0.1.2-rc.1 tag; docs updated
(AGENTS.md, README, docs/compatibility.md).
- verified against the rc.1 sources: the tool-attribution map (names and
packages, incl. the documented `subagent_fork` alias), MCP naming, the
page/imageUrl/legacy.nodes faces, and the registry contract.
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