Change notifications: 3 API change passages
What Microsoft published
Changelog entryAdded the vapidPublicKey property to the subscription resource. Specifies the application server's VAPID public key (RFC 8292) used to bind a Web Push subscription to a server identity. Added the webPushEncryptionP256dhPublicKey property to the subscription resource. Specifies the subscriber's ECDH public key used to derive the per-message content encryption key for RFC 8291 Web Push payload encryption. Added the write-only webPushEncryptionSecret property to the subscription resource. Specifies the subscriber's auth secret used as the HMAC-SHA-256 salt for HKDF key derivation in RFC 8291 Web Push payload encryption.
3 individual passage citations
1 API documentation links
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First observed 26 Oct 2026No field changes are shown for this selection.
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