[0.16.4] - 2026-05-05

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 for more information on how to upgrade from previous versions.

Added

Changed

Fixed

• Live tracing in community and OSS versions.
• Timezone changes from the AccountSettings object return invalidProperties.
• mail-parser panic with certain messages containing corrupted attachments.
• Pagination by anchor for queued messages, tasks and metrics.
• Spam filter: Use original instead of rewritten RCPT on checks.
• JMAP:
  • References in nested objects not resolved.
  • AddressBook/query fetches wrong resources.
• Import tool fails to restore registry entries.
• FDB: Allow multiple FoundationDB instances in the same process.
• Autoconfig: Return %EMAILADDRESS% when no email address is provided.
• Quota: Include Sieve scripts in quota recalculations.

Check binary attestation here