The new version 6 of RiskCAT61508 includes, as an optional component, a module for comparing IEC 61508 Edition 2 (2010) against Edition 1 (1998 until 2000). It also has an improved user interface, the option to compare different SILs as well as improvements in the definition of SILs.
RiskCAT, with documentation and a complete version of the standard, is delivered on a USB stick. Existing customers can get the new RiskCAT 61508 as a paid upgrade.