# Cyrus IMAP 2.5.2 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-2.5.2/cyrus-imapd-2.5.2.tar.gz

> - https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-imapd-2.5.2/cyrus-imapd-2.5.2.tar.gz.sig

## Changes Since 2.5.1

### Bug fixes

- Fixed task 179: ptloader should no longer crash in ptsmodule_standard_root_dn

- Improved consistency of event notification parameters

- Fixed bug: no longer run out of memory in mupdate with twoskip (mmap leak)

- Fixed bug: no longer crash on ctl_mboxlist -d for remote mailboxes

- Fixed bug: no longer include RFC 5322 header fields when fetching CALDAV:calendar-data

- Fixed bug: properly handle same XML namespace used with 2 different prefixes in requests