question re https://joi.dev/tester/

#### Support plan

* *is this issue currently blocking your project?* (no):
* *is this issue affecting a production system?* (no):

#### Context

* 12:
* 17.4.0:
* browser
* standalone:
* *any other relevant information*:

#### How can we help?
Just wondering why the online sandbox is 17.3.0 yet the current release is 17.4.0?? Be nice to be able to verify against the latest version or even ANY version via a drop down box?

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