Back to changelog

Fastify SDK 2.0

Category
SDK
Published

Introducing Clerk's Fastify SDK 2.0 with support for Fastify v5

Fastify, the fast and low overhead web framework for Node.js, has recently shipped Fastify v5. In order to support Fastify v5 a new major version of @clerk/fastify had to be released. With Clerk's Fastify SDK 2.0 comes full support for Fastify v5 and no breaking changes for the Clerk SDK itself.

If you're using Fastify and @clerk/fastify, you can update like so:

  1. Follow the official Fastify v5 migration guide
  2. Install the latest version of @clerk/fastify 
    npm install @clerk/fastify@latest
  3. You're done! No further changes needed

@clerk/fastify@^2.0.0 only supports Fastify v5 or later, if you want/need to continue using Fastify v4, please stick with @clerk/fastify@^1.0.0.