Transition to the latest REST API

[Enterprise26648787s3nb]

I got an email as seen below:

We’re reaching out because you’re still using an older version of our APIs in free trial. Please transition over to our latest REST APIs within 60 days of receipt of this email. The older version of the REST APIs (Version 2.0) for free trials will only be supported until May 6th, 2023. 

How do I carry out this trnaisitioning?

[Test Screen Name]

Confusingly this is nothing to do with the Acrobat SDK (for controlling the local Acrobat app on Mac or Windows).

The message relates to Adobe's PDF web services. This is now called the Acrobat Services API, and here is the correct forum https://community.adobe.com/t5/acrobat-services-api/ct-p/ct-Document-Cloud-SDK?page=1&sort=latest_re...