Release Road Map

• Current Release
• Future Minor Release
• Future Major Release
• Past Release

Past Releases

OpenLDAP 1.0 (released August 1998)

This version is not actively maintained.

OpenLDAP 1.1 (released December 1998)

This version is not actively maintained.

• Additional Features
  • externally configurable client library support: ldap.conf(5)
  • demonstration GTK interface
  • demonstration PHP3 interface
• Enhance security features
  • ACL by group support.
  • Improved Password Security Features including SHA1, MD5 and crypt(3) support instead of clear-text passwords.
  • Enhanced TCP wrapper support
• Improved build environment
  • Automated Configuration
  • Shared Library Support
• Upgrade platform support

OpenLDAP 1.2 (released February 1999)

This version is not actively maintained.

• ldapTCL - a TCL SDK from NeoSoft
• LDAP passwd tool
• Salted passwd support
• Numerous bug fixes and platform updates

OpenLDAP 2.0 (released August 2000)

This version is not actively maintained.

LDAPv3 support and much, much more!

• LDAPv3 (RFC3377,2251-2256,2829-2830)
  • Strong Authentication (SASL) (RFC2829)
  • Start TLS (RFC2830)
  • Language Tags (RFC2596)
  • DNS-based service location (RFC2247+RFC3088)
  • Password Modify (RFC3062)
• Enhanced Standalone Server
  • Named References/ManageDsaIT (RFC3296)
  • Enhanced Access Control subsystem
  • Thread pooling
  • Preemptive threading support
  • Multiple listener support
• LDIFv1 (RFC2849)
• Improved platform/subsystem detection

OpenLDAP 2.1 (released June 2002)

This version is not actively maintained.

Functional enhancements and improved stability:

• Transaction oriented database backend
• Improved Unicode/DN Handling
• SASL authentication/authorization mapping
• SASL in-directory storage of authentication secrets
• Enhanced administrative limits / access controls
• Enhanced system schema checking
• LDAPv3 extensions:
  • Enhanced Language Tag/Range option support
  • objectClass-based attribute lists
  • LDAP Who ami I? Extended Operation
  • LDAP no-op Control
  • Matched Values Control (RFC3876)
  • Misc LDAP Feature Extensions
• LDAP C++ API
• Updated LDAP C & TCL APIs
• Meta Backend
• Monitor Backend
• Virtual Context "glue" Backend

OpenLDAP 2.2 (released December 2003)

This version is not actively maintained.

Functional enhancements and improved scalability:

• "LDAP Sync"-based lightweight replication
• Proxy Cache Support
• Hierarchical Backend
• NS-SLAPI Support
• Backend Layering
• Access Control extensions including dynamic group support
• LDAPv3 extensions:
  • ACID extensions
  • Cancel Operation (RFC3909)
  • Content Synchronization Operation
  • DIT Content Rules (X.501)
  • Duplicate Entry Extension
  • Simple Paged Results Extension (RFC2696)
  • Proxied Authorization Extension

OpenLDAP 2.3 (released June 2005)

This version is not actively maintained.

Functional enhancements and improved scalability:

• Access Control extensions including "don't disclose on error" provisions
• Configuration Backend (cn=config)
• Password Policy Overlay (work in progress)
• Sync Provider Overlay
• Delta-syncrepl support
• LDAPv3 extensions:
  • ManageDIT Extensions (work in progress)
  • Component Matching (experimental)

OpenLDAP 2.4 (released October 2007)

Functional enhancements and improved scalability:

• Updated slapd dispatcher
• MirrorMode and MultiMaster replication
• Proxy Sync replication
• Expanded monitoring
• Multiple new Overlays
• Expanded documentation
• New socket backend (experimental)
• LDAPv3 extensions:
  • LDAP Chaining Operation support
  • LDAP Don't Use Copy Control support
  • LDAP Dynamic Directory Services (RFC2589)

Current Release(s)

OpenLDAP 2.5 (released April 2021)

Functional enhancements and improved scalability:

• LDAP Load Balancer Daemon
• Slapd Enhancements
  • Large Multi-valued Attribute Support
  • LDAP Transaction Support
  • New Replication Protocols
  • Multi-Factor Authentication
  • Asynchronous Meta-directory backend
  • Wiredtiger backend (Experimental)
  • Dynamic Configuration Delete
• Overlay changes
  • New features for pcache, ppolicy, dynlist, and unique overlays
  • Multiple new Overlays
    • autoca
    • homedir
    • otp
    • totp
    • argon2
    • adremap
    • authzid
    • datamorph
    • ppm
    • pw-radius
    • rbac
    • remoteauth
    • usn
    • variant
    • vc
• Library enhancements
  • New C LDIF Library
  • libldap_r has been merged with libldap
  • libldap has TLS channel binding support
  • libldap has TLS public key pinning support
  • libldap has TLS SNI support
  • libldap has GSSAPI channel binding support
• LDAPv3 extensions:
  • Authorization Identity Request Control (RFC 3829)
  • Authorization Identity Response Control (RFC 3829)
  • MS AD Lazy Commit Control
  • Netscape account usability control
  • Netscape Password expiring warning
  • Netscape Password expired warning
  • LDAP transaction specification control
  • Start LDAP transaction extended operation
  • End LDAP Transaction extended operation
  • Abort LDAP Transaction (notification) extended operation
  • Verify user credentials extended operation
• slapmodify tool
• Expanded documentation

OpenLDAP 2.6 (Released October 2021)

Functional enhancements:

• slapd and lloadd
  • File-based logging, including log file management capabilities (ITS#9492)
• Load Balancer enhancements
  • Read affinity (ITS#9598)
  • Additional balancing algorithms (ITS#9599)

Future Minor Releases

OpenLDAP 2.7 (Fall 2023)

Functional enhancements:

• Overlay Enhancements
  • Native RADIUS server implementation (ITS#9717)
  • Scoped application of default password policies based on LDAP URI (ITS#9343)

Future Major Releases

OpenLDAP 3.0 (TBD)

We're not thinking that far ahead right now.