v0.16.9

kyegomez/swarmsv0.16.9Jun 16, 2026by github-actions[bot]

AI Summary

This release focuses on stability improvements and bug fixes across various components like JMAP, MTA, and FoundationDB. It introduces new functionality for ACME certificate management and Autodiscover v2.

Key Highlights

ACME: Added support for preferred certificate chains and freshness checks during renewal.
JMAP: Fixed a security issue where non-shared object IDs were leaked in `*/changes` methods.
FoundationDB: Corrected read version cache expiration logic to prevent potential data staleness.
CardDAV: Fixed version requests included in `address-data` to ensure they are processed correctly.
Autodiscover v2: Enhanced by reading the email address directly from query parameters.

New Features

ACME: Allow specifying a preferred certificate chain.
Autodiscover v2: Read email address from query parameters.

Full Release Notes

## [0.16.9] - 2026-06-15

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
- ACME: Allow specifying a preferred certificate chain.

## Changed

## Fixed
- JMAP: `*/changes` methods leak ids of non-shared objects (reported by @5ud0er).
- Sieve: Do not allow invalid certs in `http_header` function.
- FoundationDB: Fix read version cache expiration logic.
- MTA: Re-scheduling or editing a queued message reports success but persists nothing for recipients in a non-`default` virtual queue.
- CardDAV: Version requests included in `address-data` are ignored.
- ACME: Add freshness check when renewing certificates.
- Autodiscover v2: Read email address from query parameters.
- Sieve: Do not keep copies of redirected messages when `keep` is not specified.
- Registry: Object ids are parsed as numbers.


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### Check binary attestation [here](https://github.com/stalwartlabs/stalwart/attestations/31329451)