Today we released Stalwart v0.16.10, a release that closes every single open bug report we have on record: both the legacy issues on GitHub and the reports filed through our new support portal. With the tracker clear of bugs, we want to share where Stalwart stands today and what is left before we ship version 1.0.
A good number of Stalwart deployments are still on an older release for one reason: upgrading between versions meant a maintenance window, and downtime on a mail server is the one thing nobody wants to schedule. We promised a zero-downtime path built from two tools. Vandelay, the data-transfer half, shipped a couple of weeks ago. Today we are shipping the second and final part, the migration proxy, and with it the full workflow is real: a live deployment can move from an older Stalwart version to v0.16 one account at a time, with no scheduled maintenance window and nothing for end users to reconfigure.
Many Stalwart deployments are running an older version not because the operators want to, but because upgrading across a major release can mean migrating off an older database schema, and that means downtime. We promised a zero-downtime migration path built from two parts, a proxy and a transfer tool, and the question we hear most is when it will arrive. Today we are shipping the first part: Vandelay, a one-shot account migration and backup utility for JMAP that also imports from IMAP, CalDAV, CardDAV, WebDAV, ManageSieve, Maildir, Google Takeout, and (experimentally) Microsoft Exchange.
Two years ago we shipped MTA Hooks in Stalwart Mail Server as a modern, HTTP-based alternative to Milter. In the time since, it has gone from a Stalwart feature to a protocol used across thousands of deployments worldwide, with implementations being built by third parties and interest from major players in the mail filtering ecosystem. We are now taking the next step: standardizing MTA Hooks at the IETF, so that it stops being “the Stalwart way of doing things” and becomes an open protocol that any MTA and any filter can speak.
Today we are launching support.stalw.art, the new home for Stalwart community and Enterprise support. The portal consolidates the conversations that until now were scattered across GitHub Discussions, Discord, Matrix, and Reddit into a single, searchable place, so that questions can be found, answered, and revisited without depending on any one third-party platform.
