March 2018

• Reduced the amount of force required to flip open the blade
• Lock bar changes to improve the drop shut action

April 2018

• Added a hidden clip screw
• Rounded out hot spots found on the clip

May 2018

• Changed from the version one integral detent system to the version two adjustable detent system
• Rounded out the hot spot found at the top lock bar
• Added depth to the jimping on the flipper tab and spine of the blade  
• More consistent drop shut action between the different handle patterns
• Increased the intensity of stone washing done to blades.  Previous versions were typically referred to as "light stone washed"
• Added new handle patterns:  Checkered, Moray, Feather

November 2018

• Started using a blade centering spacer

March 2019

• Specter 365 on all done on the Haas

April 2019

• Released V3 (#389 on)
• Chamfers everywhere
• New detent system for crisp deployment
• Tighter clearances between the scales and blade
• Ramped clip to reduce lockbar pressure
• Centering spacer with smaller clearance

February 2020

• Released V4 liner lock system (~#754)

July 2020

• New handle patterns released: Flux, Ridgeback
• Added machining patterns on most clips to match the handle machining pattern

August 2020

• Retired