Radicale
Radicale, small, secure CalDAV and CardDAV server written in Python. Self-host your calendars and contacts.
Release history
Radicale 3.8.3
Patches an auth flaw where rights and group membership weren't cleared before a conditional check. Upgrade if self-hosting CalDAV/CardDAV with group-based access
Radicale 3.8.2
Adds read-only free/busy views via GET, sharing tokens, and a WebUI calendar URL for free/busy exposure. Useful for scheduling integrations without full calendar access
Radicale 3.8.1
Adds /.mobileconfig endpoint for authenticated users and CalDAV compatibility test suite
Radicale 3.8.0
Adds sharing or realm; New group types include htgroup, none, and from-auth
Radicale 3.7.8
Fixes time-range filter on VTODO using wrong duration pair; Rejects invalid proppatch
Radicale 3.7.7
Fixes MIME-type handling in web plugin and free-busy REPORT logic
Radicale Fixes+Extensions+Workaround+Improvements
Adds IMAP auth domain append option and item verification on commandline; Fixes URL-encode awareness in shared-calendar REPORT and PROPPATCH
Radicale 3.7.5
Birthday conversion templates let operators customize summary, description, alarm, and categories for shared calendar workflows. Relevant if calendar sharing is in use
Radicale 3.7.4
PROPFIND sharing fix matters if mapped shares returned malformed owner elements. WebUI copy button now hidden in insecure contexts
Radicale 3.7.3
Radicale 3.7.3 fixes sharing bugs with birthday conversion and adds conditional request/response logging for operators troubleshooting calendar sync issues