Skuid visualforce redirect valid?

We have a tab override for our opportunity’s tab that was created 2 years ago and would like to know if this syntax is still valid? We are trying to debug an issue and may think this redirect may be the cause. Thanks!

<apex:page standardController="Opportunity" action="{!redirect}&amp;actiontype=New&amp;objecttype=Opportunity" extensions="skuid.Redirects"/>

We have fantastic new documentation that covers this exact issue:
https://docs.skuid.com/v10.0.9/en/skuid/deploy/salesforce/visualforce/skuid-page-visualforce-compone…

We have fantastic new documentation that covers this exact issue:
https://docs.skuid.com/v10.0.9/en/skuid/deploy/salesforce/visualforce/skuid-page-visualforce-compone…

Thank you Stephen!