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5.5.16

Version published 2026/07/29​

Changelog published on 2026/07/29​

Calendar​

  • BM-23991: Fixes: Event log out of order.
  • Fixes: Awaitility dependency and missing imports in VEventIndexStoreTests.

CalDAV​

  • BM-21558: Added support for recurring events in date-range searches in DAV.

Mobile Devices (EAS)​

  • BM-19864: Fixes: Deleting an email regarding a recurrence exception from the Samsung Mail app causes the entire series of a meeting to be rejected.

Administration / Architecture​

Administration console​

  • BM-23874: Fixes: Identical labels on scheduled jobs in the German interface.
  • BM-23676: Fixes: Domain administrators cannot create standard accounts.

Cyrusspool​

  • Fixes: During a migration, certain scenarios could result in the deletion of the only existing copy of an email without anyone noticing (the migration would still complete "successfully").

MAPI​

  • BM-23941: Fixes: A bug that could slow down or even block access to the directory from Outlook if the server responded slowly.

Node​

  • Fixed the file traversal mechanism used, in particular, during data migrations, which could previously enter an infinite loop or duplicate emails in certain cases.