[alexcarpenter]

Description

Not for merge. This exports UserProfile and OrganizationProfile temporarily, so e2e tests can run them under React 19 concurrent features and surface bugs to fix.

integration/tests/mosaic/concurrency.test.ts puts UserProfile, OrganizationProfile and the UserButton popup in a host harness (concurrency-harness.tsx). The harness drives host transitions, <Activity> hide/show, a re-suspending host <Suspense>, and Next.js navigations.

Seven tests fail on main, from two bugs:

• Freeze deadlocks a host transition (4 tests, both profiles). Open a custom page, drop it from customPages, then restore it inside startTransition or with a Next.js <Link>. The navigation never commits. The outgoing tab panel freezes inside the transition, and Freeze throws a promise that never settles. With Freeze's suspension disabled, these tests pass.
• <Activity> resets machine-backed flows (3 tests). Hiding and showing the surface drops the add-email verify step and closes the delete-organization confirm and the UserButton popup. With the machine changes from fix(mosaic): resume machine actors after stop instead of resetting them #10341 applied, all three pass.

Checklist

• pnpm test runs as expected.
• pnpm build runs as expected.
• (If applicable) JSDoc comments have been added or updated for any package exports
• (If applicable) Documentation has been updated

Type of change

• 🐛 Bug fix
• 🌟 New feature
• 🔨 Breaking change
• 📖 Refactoring / dependency upgrade / documentation
• other: e2e probe, not for merge

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Project	Deployment	Actions	Updated
clerk-js-sandbox	Ready	Preview	Oct 26, 2026 2:12pm UTC
swingset	Ready	Preview	Oct 26, 2026 2:12pm UTC

[changeset-bot]

🦋 Changeset detected

Latest commit: d43c6d9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@clerk/mosaic	Patch
@clerk/swingset	Patch

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commit: d43c6d9