emulator and the C compiler. Furthermore, in order to be able to license the AIX source code, the customer first had to procure source code license agreements with AT&T and the University of California, Berkeley. Versions POWER/PowerPC/Power ISA releases AIX V7.3, December 10, 2021 Requires POWER8 or newer CPUs AIX V7.2, October 5, 2015 Live update for Interim Fixes, Service Packs and Technology Levels replaces the entire AIX kernel without impacting applications Flash based filesystem caching Cluster Aware AIX automation with repository replacement mechanism SRIOV-backed VNIC, or dedicated VNIC virtualized network adapter support RDSv3 over RoCE adds support of the Oracle RDSv3 protocol over the Mellanox Connect RoCE adapters Supports secure boot on POWER9 systems. Requires POWER7 or newer CPUs AIX V7.1, September 10, 2010 Support for 256 cores / 1024 threads in a single LPAR The ability to run AIX V5.2 or V5.3 inside of a Workload Partition An XML profile based system configuration management utility Support for export of Fibre Channel adapters to WPARs VIOS disk support in a WPAR Cluster Aware AIX AIX Event infrastructure Role-based access control (RBAC) with domain support for multi-tenant environments Requires POWER4 or newer CPUs AIX V6.1, November 9, 2007 Workload Partitions (WPARs) operating system-level virtualization Live Application Mobility Live Partition Mobility Security Role Based Access Control RBAC AIX Security Expert a system and network security hardening tool Encrypting JFS2 filesystem Trusted AIX Trusted Execution Integrated Electronic Service Agent for auto error reporting Concurrent Kernel Maintenance Kernel exploitation of POWER6 storage keys ProbeVue dynamic tracing Systems Director Console for AIX Integrated filesystem snapshot Requires POWER4 or newer CPUs AIX 6 withdrawn from Marketing effective April 2016 and from Support effective April 2017 AIX 5L 5.3, August 13, 2004, end of support April 30, 2012 NFS Version 4 Advanced Accounting Virtual SCSI Virtual Ethernet Exploitation of Simultaneous multithreading (SMT) Micro-Partitioning enablement POWER5 exploitation JFS2 quotas Ability to shrink a JFS2 filesystem Kernel scheduler has been enhanced to dynamically increase and decrease the use of virtual processors. AIX 5L 5.2, October 18, 2002, end of support April 30, 2009 Ability to run on the IBM BladeCenter JS20 with the PowerPC 970 Minimum level required for POWER5 hardware MPIO for Fibre Channel disks iSCSI Initiator software Participation in Dynamic LPAR Concurrent I/O (CIO) feature introduced for JFS2 released in Maintenance Level 01 in May 2003 AIX 5L 5.1, May 4, 2001, end of support April