Correction: Calendarserver works fine as is with APNS.

I simply didn’t add the necessary prefix ‘apns:’ to the certificate names per:

https://github.com/apple/ccs-calendarserver/blob/13c706b985fb728b9aab42dc0fef85aae21921c3/twistedcaldav/stdconfig.py#L875-L891


On May 4, 2021, at 6:42 AM, Steven Smith <steve.t.smith@gmail.com> wrote:

Does anyone have a calendarserver patch that addresses the new APNS API requirement for HTTP/2?

I just swapped in new APNS certificates and see in the calendarserver logs that APNS connections are no longer going through. The legacy APNS binary protocol was deprecated in November 2020: