UPGRADE.md not found after updating to Valet v4

[nickdavis]

Description:

Updated to valet v4 but the file I'm directed to - https://github.com/laravel/valet/blob/master/UPGRADE.md - in the following message 404s

Please make sure all custom drivers have been upgraded for Valet 4.
See the upgrade guide for more info:
https://github.com/laravel/valet/blob/master/UPGRADE.md

Steps To Reproduce:

Try to visit this URL https://github.com/laravel/valet/blob/master/UPGRADE.md

Diagnosis

Alternatively, if someone could let me how to update all custom drivers in the meantime. I've updated composer and brew. Thanks.

Unfortunately valet diagnose gives me the same message and no other output.

[mattstauffer]

WHOOPS. That's my bad!

@nickdavis https://github.com/laravel/valet/blob/d1967bbd0c61e528e47a79ed45556e58c2e614cf/UPGRADE.md

There's that file for now, and I'll bring it back shortly.

[mattstauffer]

From that doc:

---

• If you have any issues with your drivers, all custom drivers (including the SampleValetDriver published by previous versions of Valet) must have the following; see the new SampleValetDriver for an example:
  • Match the new type hints of the base ValetDriver
  • Extend the new namespaced drivers instead of the old globally-namespaced drivers
  • Have their own namespace

[nickdavis]

@mattstauffer thanks so much!