As detailed within the dataJAR blog post, this change is between MDM servers and Apple and not managed devices.
Since Jamf Pro 10.23.0, there has been a toggle to enable this change to HTTP/2 for APNs communication.
However with Jamf Pro 10.28.0 release earlier this week, Jamf Pro will default to HTTP/2 and if you’re self hosting Jamf Pro this release will flip over the APNs communication to use HTTP/2.
If you’re Jamf Cloud, then this change has already been made for you.
So, this short post is just to bring attention to this change for those that need it.
And if you’d like to know more, for more info see the aforementioned blog post on the dataJAR blog.