On which release is Redwood Theme planned to become mandatory?

Summary:

Redwood becoming mandatory theme

Content (required):

On which release is Redwood theme planned to become mandatory? As some pages are still Classic and not all enabled with NUX/ Responsive User Experience and as customers can already choose to use Redwood, is there a plan to decommission the Classic NUX/ RUX and transition all customers to Redwood? If yes, what is the roadmap around this change?

Version (include the version you are using, if applicable):

23A

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