- https://jooby.io/#introduction - > Access to [3.x](https://jooby.io/v3) documentation. See [migrating from 3.x to 4.x](https://jooby.io/migration/4.x) The link to 3.x (https://jooby.io/v3) is not working and responds with: > Page not found > > Looks like you’ve followed a broken link or entered a URL that doesn’t exist on this site.
The link to 3.x (https://jooby.io/v3) is not working and responds with: