The following is the change history log for Black Maxx tuners that was previously hosted by H&S Performance before they closed down. The information listed is for tune file versions used by the 6.6L Duramax LMM.
Current Version: 6.6.26
6.6.26 June 19, 2012 – Medium duty truck surging addressed
6.6.25 May 29, 2012 – Firmware 1021 capable, PCH 2.0 capable, Install download text change
6.6.24 Dec. 14, 2011 – Reduced engine power messages addressed
6.6.23 Oct. 17, 2011 – P0299 DTC adjusted, Easy Tuning option available, Cold Idle surging adjusted
6.6.22 Oct. 10, 2011 – Blank Screen boot-up fixed
6.6.21 Performance Testing software added, Speed limiter bugs fixed, P0087 adjustments
6.6.20 Tuning changes for increased HP, Medium duty Calibrations defined
6.6.19 Speed display fixed
6.6.18 Idle “lope” fixed
6.6.17 Surging issues addressed
6.6.16 Gauges freezing at zero fixed, Display changes
6.6.15 DTC P0106 addressed
6.6.13 5500 Kodiak software fix
6.6.12 Active Maxx glitch fixed, Auto power up fix, Power loss / smoking fixed
6.6.11 Grid heater delete capable
6.6.10 Throttle response issues fixed
6.6.9 Full EGR delete capable
6.6.8 DPF Present Tuning Capable
6.6.7 Reduced Engine Power / Limp Mode issue addressed
6.6.6 Light duty tuning changes, gained horsepower / driveability
6.6.5 Medium duty Kodiak / Topkick 4500, 5500 capable
6.6.4 Initial release software