### Prerequisites - [X] I have written a descriptive issue title - [X] I have searched existing issues to ensure the issue has not already been raised ### Issue There are some performance improvements merged into the master but not released: https://github.com/fastify/fast-json-stringify/pull/695 https://github.com/fastify/fast-json-stringify/pull/696 https://github.com/fastify/fast-json-stringify/pull/697
