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v0.16.14

diffusionstudio/corev0.16.14Jul 20, 2026by github-actions[bot]

AI Summary

This release introduces VAPID support for JMAP Web Push and resolves numerous bugs across IMAP, JMAP, CalDAV, MTA, and Calendar modules.

Key Highlights

  • Introduced VAPID support for JMAP Web Push
  • Fixed IMAP mailbox quota enforcement and pipelined command ordering
  • Resolved JMAP push subscription verification and payload encoding issues
  • Fixed CalDAV reporting and Calendar scheduling failures

New Features

  • VAPID support for JMAP Web Push

Full Release Notes

## [0.16.14] - 2026-07-20

If you are upgrading from v0.16.x, replace the binary (or run `docker pull`). If you are upgrading from v0.15.x and below, please read the [upgrading documentation](https://github.com/stalwartlabs/stalwart/blob/main/UPGRADING/v0_16.md) for more information on how to upgrade from previous versions.

## Added
- Use of Voluntary Application Server Identification (VAPID) in JMAP Web Push ([RFC 9749](https://datatracker.ietf.org/doc/html/rfc9749)).

## Changed

## Fixed
- IMAP:
  - Mailbox object-quota only enforced in JMAP.
  - Pipelined `STORE` and `EXPUNGE` can execute out of order.
- JMAP: 
  - Read-only sharee cannot set `isSubscribed` on a shared mailbox.
  - Web Push payloads with `Content-Encoding: aes128gcm` should not be base64-encoded but sent as raw bytes.
  - Stale push subscription can block verification of a new one.
  - `PushSubscription/set` rejects the unpadded base64url keys the W3C Push API produces.
  - `Email/import` does not send push notifications for imported messages.
  - `CalendarEvent/set` silently ignores `ifInState`.
- CalDAV: `calendar-query` REPORT returns empty calendar-data for JMAP-created events.
- MTA: 
  - DMARC is skipped when MAIL FROM SPF is unavailable.
  - `queue_name` variable not available in rate limiter expressions.
- Calendar: 
  - No expanded occurrences are returned for a daily recurrences crossing DST.
  - Uppercase `MAILTO` calendar addresses become invalid SMTP recipients.
  - Scheduling invitations on a shared, non-owned calendar fail with `MAIL FROM unauthorized`.
- HTTP: Disable `allowedEndpoints` expression in recovery mode.
- Telemetry: Tasks are serialized to the wrong store when using separate stores for telemetry and data.


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### Check binary attestation [here](https://github.com/stalwartlabs/stalwart/attestations/36162381)