History of AIX

Versions : 

AIX 5L 5.3, August 2004
NFS Version 4 support
Advanced Accounting
Virtual SCSI
Virtual Ethernet
Simultaneous multithreading (SMT) support
Micro-Partitioning support
POWER5 support
JFS2 Quota support
JFS2 Filesystem shrink support


AIX 5L 5.2, October 2002
Minimum level required for POWER5 hardware
Support for MPIO Fibre Channel disks
iSCSI Initiator software
Dynamic LPAR support


AIX 5L 5.1, May 2001
Minimum level required for POWER4 hardware and the last release that supported Micro Channel architecture
Introduction of 64-bit kernel, installed but not activated by default
Introduction of JFS2
Static LPAR support
The L stands for Linux affinity
Trusted Computing Base (TCB)


AIX 4.3.3, September 1999
Added online backup function
Workload Management (WLM)


AIX 4.3.2, October 1998

AIX 4.3.1, April 1998

AIX 4.3, October 1997
Support for 64-bit architecture
Support for IPv6

AIX 4.2.1, April 1997
NFS Version 3 support


AIX 4.2, May 1996

AIX 4.1.5, August 1996

AIX 4.1.4, October 1995

AIX 4.1.3, July 1995
CDE 1.0 became the default GUI environment, replacing Motif X Window
Manager.

AIX 4.1.1, October 1994

AIX 4.1, August 1994

AIX v4, 1994

AIX v3.2 1992

AIX v3.1
Introduction of Journaled File System (JFS)

AIX v3, February 1990
Developer release licensed only to OSF; the LVM was incorporated into OSF/1.
SMIT was introduced.

AIX v2.0
last version was 2.2.1.

AIX v1, 1986
last version was 1.3