Release Dates:
IRP 7.5: sep 2019
IRP 7.0: apr 2019
IRP 6.5: sep 2018
IRP 6.0: feb 2018
IRP 5.5: july 2017
IRP 5.0: nov 2016
IRP 4.5: mar 2016
IRP 4.0: may 2015
IRP 3.5: may 2014
IRP 3.1: dec 2013
IRP 3.0: jul 2013
IRP 2.0: jul 2012
IRP 1.0: jun 2011