Upgrading to Clerk Core 2

In April 2024, we updated Clerk's SDKs to include Core 2. This new core includes:

  • ๐Ÿ’… Redesigned and improved component UIs.
  • ๐Ÿ”ช The 401 & "flash of white page" that was visible sometimes when syncing auth state was eliminated.
  • ๐Ÿงน A large number of smaller housekeeping changes, bugfixes, and improvements.
  • ๐Ÿ“Š Telemetry to allow us to better determine feature usage and priority (easy opt-out if you don't like this)

SDK Guides

Core 2 brings both UI changes and breaking code changes, so each SDK has been updated to a new major version. We expect upgrades to take less than 30 minutes, and are providing a CLI tool to assist with the process. Please select your SDK below to get started:

Note that the Gatsby, Go, and Ruby SDKs do not yet have a Core 2 release ready - if you are using any of these SDKs there is nothing actionable right now.


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