DL-207

The apps/ui Solid v2 migration builds NOW on a migration branch against solid-js 2.0.0-rc.0 (branch-only peer overrides), not deferred to GA: the two blocker deps gate the branch merge independently of RC-vs-GA, so the real fork was build-now vs build-lazily — build now for early de-risking signal, branch upkeep the accepted cost. v1-safe effect/batching prep (S1-S3) lands on main ahead of the branch. The RIG-2186 accounts-login greenfield is a new surface with no blocker deps and starts directly on Solid v2 (cross-issue, owned by RIG-2186 planning)

Status: Active (Matt, 2026-08-18)

Record: ../../ui/compass-ui-solid-v2/design.md#resolved-decisions