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Cyrus IMAP 2.4.17-caldav-beta4 Release Notes
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Changes to the Cyrus IMAP Server since 2.4.17-caldav-beta3

*   Plugged leaked memory found by Valgrind
*   Rewrote list_feeds() to not use memmem()
*   OPTIONS method can be used without authentication
*   Better handling of Connection:keep-alive
*   Added httpallowedurls option

:ref:`imap-release-notes-2.4-dav`
