Current Racket Language version (please update to 8.18)

With respect to the **Racket language**: **currently the version available in [racket-lang.org](https://racket-lang.org) is 8.18**, _but in your web site, the installed version is **8.10**_ .
If possible, _please update to the current 8.18 version_. 

Thank you very much in advance, and congratulations for your amazing site.
_Kind regards,_ 
Enrique Comer.