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.changeset/purple-goats-applaud.md

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+---
+"@clerk/clerk-js": minor
+"@clerk/shared": minor
+"@clerk/clerk-react": minor
+"@clerk/types": minor
+---
+
+Rename `__experimental_assurance` to `__experimental_reverification`.
+
+- Supported levels are now are `firstFactor`, `secondFactor`, `multiFactor`.
+- Support maxAge is now replaced by maxAgeMinutes and afterMinutes depending on usage.
+- Introduced `____experimental_SessionVerificationTypes` that abstracts away the level and maxAge
+  - Allowed values 'veryStrict' | 'strict' | 'moderate' | 'lax'