Release Summary
The major (functional) releases of OpenLDAP Software include:
- OpenLDAP Version 1 was a general clean-up of the last release from the University of Michigan project (release 3.3), and consolidation of additional changes.
- OpenLDAP Version 2.0, released in August 2000, included major enhancements including LDAP version 3 (LDAPv3) support, Internet Protocol version 6 (IPv6) support, and numerous other enhancements.
- OpenLDAP Version 2.1, released in June 2002, included the transactional database backend (based on Berkeley Database or BDB), Simple Authentication and Security Layer (SASL) support, and Meta, Monitor, and Virtual experimental backends.
- OpenLDAP Version 2.2, released in December 2003, included the LDAP "sync" Engine with replication support (syncrepl), the overlay interface, and numerous database and RFC-related functional enhancements.
- OpenLDAP Version 2.3, released in June 2005, included the Configuration Backend (dynamic configuration), additional overlays including RFC-compliant Password Policy software, and numerous additional enhancements.
- OpenLDAP Version 2.4, released in October 2007, introduced N-way MultiMaster replication, Stand-by master, and the ability to delete and modify Schema elements on the fly, plus many more.
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