Product : Nutanix, ECP [HCI]/5.10, Pro
Feature : Maturity, Assessment, General
Content Owner:  Herman Rutten
Summary
Release Dates:
AOS 5.10: nov 2018
AOS 5.9: oct 2018
AOS 5.8: jul 2018
AOS 5.6.1: jun 2018
AOS 5.6: apr 2018
AOS 5.5: dec 2017
AOS 5.1.2 / 5.2*: sep 2017
AOS 5.1.1.1: jul 2017
AOS 5.1: may 2017
AOS 5.0: dec 2016
AOS 4.7: jun 2016
AOS 4.6: feb 2016
AOS 4.5: oct 2015
NOS 4.1: jan 2015
NOS 4.0: apr 2014
NOS 3.5: aug 2013
NOS 3.0: dec 2012
Details
5th Generation software. Nutanix currently has the most all-round package when it comes to advanced functionality, when comparing ECP to other SDS/HCI platforms.

Nutanix has adopted an LTS/STS life cycle approach towards AOS releases:
5.5, 5.10 (LTS)
5.6, 5.8, 5.9 (STS)

LTS are released anually, maintained for 18 months and supported for 24 months.
STS are released quarterly, maintained for 3 months and supported for 6 months.

*5.2 is a IBM Power Systems-only release; for all other platforms version 5.6 applies.

NOS = Nutanix Operating System
AOS = Acropolis Operating System
LTS = Long Term Support
STS = Short Term Support