As a reminder, the intermediate certificate updates are now available for the Apple Push Notification service (APNs) and Developer ID.
Apple Worldwide Developer Relations Intermediate Certificate (G4)
APNs SSL certificates are now issued from a new intermediate certificate (Worldwide Developer Relations G4 sub CA) exclusively focused on APNs. Use this certificate to send push notifications to apps (including VoIP), complications, websites on Safari, and Apple Wallet passes.
Apple Developer ID Intermediate Certificate (G2)
The digital certificates you use to sign your software and installer packages on macOS are now issued from a new Developer ID Intermediate Certificate that expires on September 16, 2031. Newly issued Developer ID certificates associated with the new intermediate certificate can be used to sign software on Xcode 11.4.1 and later. If you’re running Xcode 13.2 or later, the updated certificate will download automatically when you sign software after January 28, 2022. If you’re using an earlier version of Xcode, download the certificate manually or create certificates compatible with previous versions of Xcode.
Your existing certificates will continue to function until expiration or revocation, whichever comes first.