Hi all! We are pleased to release v0.5.9 of Pigeonhole. Please find it from locations below --- Aki Tuomi Open-Xchange oy https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.9.tar... https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.9.tar... Binary packages in https://repo.dovecot.org/ Docker images in https://hub.docker.com/r/dovecot/dovecot --- + Added events for Sieve and ManageSieve, see   https://doc.dovecot.org/admin_manual/list_of_events/#pigeonhole + Pigeonhole: Implement the Sieve "special-use" extension described in   RFC 8579. - duplicate: Test only compared the handles which would cause   different values to be cached as the same duplicate test. Fix to also   compare the actual hashes. - imap_sieve_filter: IMAP FILTER Command had various bugs in error   handling. Errors may have been duplicated for each email, errors   may have been missing entirely, command tag and ERRORS/WARNINGS   parameters were swapped.