conditions.test.ts lost noTrips when the condition kind landed; oauth.test.ts
lost the RFC 8707 resource indicator when it became required. Both are
fixtures that stopped matching a contract that grew, and both are filled in
with the value that keeps every existing case reading as it did.
budget.service.calc.test.ts typed its prepare mock from the default
implementation rather than from prepare's own signature, so all ten later
mockImplementation calls had to reproduce that exact three-member literal.
One stmt() helper names the widening instead.
Prevents users who upgrade across multiple versions from seeing all
interim notices at once. Version bounds are evaluated server-side using
semver.coerce so prerelease builds compare as their base release.
Range is lower-inclusive, upper-exclusive: maxVersion: '4.0.0' hides
the notice once 4.0.0 ships.
Server-side notice registry with per-user condition evaluation (firstLogin,
existingUserBeforeVersion, addonEnabled, dateWindow, role, custom).
Notices are sorted by priority then severity, filtered against dismissals
stored in a new user_notice_dismissals table, and served via
GET /api/system-notices/active + POST /api/system-notices/:id/dismiss.
Client renders notices through a host component that partitions by
display type (modal / banner / toast). The modal renderer supports
multi-page pagination with directional slide transitions, keyboard
navigation, and correct dismiss-all semantics on CTA / X / ESC.
Dismissals are optimistic with a single background retry.
Includes 3.0.0 upgrade notices (v3-photos, v3-journey, v3-features),
onboarding welcome modal, and full i18n coverage across 15 languages.
The /journey route is addon-gated on both client and server.
Also includes: unit + integration test suites, registry integrity test
that validates action CTA IDs against client source, and technical
documentation in docs/system-notices.md.