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# Cyrus IMAP 2.4.4 Release Notes

Changes to the Cyrus IMAP Server since 2.4.3

- Rewrite index_upgrade to always parse the message files and re-create cyrus.cache, to avoid upgrade upgrade failures where cache errors occured.
- Fixed sync_reset handling of user deletions
- Fixed proc file handling of LOGIN and folder unselect
- use cyrus.expunge file (if still present) to delete bogus records from a failed index upgrade (cause by bugs in earlier version)
- detect version 2.5 in XFER to support use with master git branch in a murder
- made pop3 expunge much more efficient
- handle missing seen file in XFER

Cyrus IMAP 2.4 Releases