Release history

mailcow-dockerized releases

mailcow: dockerized - + =

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8 shown

No immediate action

2026-05c Security relevant 8d

CVE-2026-33278 fix

Open

No immediate action

2026-05b Maintenance 13d

Routine maintenance and dependency updates.

Open

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2026-05a Security relevant 21d

SOGo update to 5.12.8

Open

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2026-05 Security relevant 22d

HTML escaping fix

Open

2026-03b Security relevant 2mo

Security fixes

Input validation and escaping improvements (CVE details forthcoming)

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2026-03a Bug fix 2mo

Fixed LDAP/Keycloak authentication JSON decoding, corrected ACME DNS-01 certificate validation for wildcard domains, and resolved theme persistence in browser storage.

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2026-03 New feature 2mo

Notable features

Forced 2FA setup and password update enforcement
Passwordless autodiscover endpoint
ACME DNS-01 challenge support for certificate validation

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2026-01 New feature 4mo

Notable features

PBKDF2-SHA512 hash algorithm for FreeIPA compatibility
MTA-STS support for alias domains
EAS/DAV access restrictions for mailbox users

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