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Release notes for the latest release

The Horde Team is pleased to announce the final release of the Horde Groupware
Webmail Edition version 5.2.22.

Horde Groupware Webmail Edition is a free, enterprise ready, browser based
communication suite. Users can read, send and organize email messages with four
different webmail interfaces and manage and share calendars, contacts, tasks,
notes, files, and bookmarks with the standards compliant components from the
Horde Project.

For upgrading instructions, please see

For detailed installation and configuration instructions, please see

Thanks to Tim O'Driscoll <> for reporting the
missing authorization check for file downloads on backends that don't require
implicit authentication.

The major changes compared to the Horde Groupware Webmail Edition version
5.2.21 are:

General changes:
* Officially support PHP 7.
* Small bugfixes.

Calendar changes:
* Fixed deleting events from remote CalDAV servers.

Tasks changes:
* Fixed unauthorized export of task lists.
* Fixed returning to task list after completing a task.
* Improved CalDAV synchronization compatibility.

File Manager changes:
* Fixed unauthorized access to file downloads.