# Cyrus IMAP 2.5.9 Release Notes

Important

This is a bug-fix release in the stable 2.5 series.

Refer to the Cyrus IMAP 2.5.0 Release Notes for important information about the 2.5 series, including upgrading instructions.

Download from GitHub:

> - https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-imapd-2.5.9/cyrus-imapd-2.5.9.tar.gz

> - https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-imapd-2.5.9/cyrus-imapd-2.5.9.tar.gz.sig

## Changes Since 2.5.8

### Dependency changes

- Libical 2.0.0 is now supported.

- preliminary support for OpenSSL 1.1.0 (not yet released)

### Other changes

- ipurge(8) now supports a "-n" (dry run) option (thanks Valentin Vidic)

### Bug fixes

- Fixed: imapd now proxies LIST (special-use) to backend (thanks John Capo)

- Fixed: sync_client handles its shutdown file more reliably (thanks John Capo)

- Fixed: httpd no longer crashes with assertion failure on shutdown after CalDAV has been used

- Fixed bugzilla #3938: squat search now handles pre-2.5 cyrus.squat data

- Fixed Issue #5: twoskip database I/O performance in unlocked foreach

- various build system improvements