Seems like there is a more localized page available for your location.
Bee Series by Synology
Products A-Z

Release Notes for Directory Server

Directory Server provides LDAP service with centralized access control, authentication, and account management. You can manage LDAP users and groups with this package.

Version: 2.0-2321


(2015-08-20)

This is the initial release to add support for DS216play.

  1. Updated to accommodate the Google API change when using Directory Server as the backend authentication server for Google Apps.

Version: 2.0-2319


(2014-12-09)
  1. Upgraded to be compatible with DSM 5.2.

Version: 2.0-2317


(2014-09-23)
  1. Certified by Synology Trust Level.

Improvements

  1. Upgraded OpenLDAP to version 2.4.39 to address multiple security vulnerabilities (CVE-2009-3767, CVE-2010-0211, CVE-2010-0212, CVE-2011-1024, CVE-2011-1025, CVE-2011-1081, CVE-2011-4079, CVE-2012-1164, CVE-2012-2668).
  2. Added member of overlay feature.

Version: 2.0-2312


(2014-09-22)
  1. Updated to be compatible with DSM 5.0.

Version: 1.1-2215


(2013-08-27)
  1. Google Apps Single Sign-On support lets Directory Server become an identity provider for your Google Apps domain, allowing users to log into Google Apps services (such as Gmail or Google Calendar) using their accounts and passwords stored on Directory Server.

Version: 1.1-2206


(2013-03-11)
  1. This update contains stability improvements and bug fixes.

Version: 1.1-2200


(2012-04-17)
  1. Fixed an issue where you may not run Directory Server due to database errors.