Whirling Axe: This skill can now be cancelled by other skills.
Fear (Stolen item— Skull): This skill now works like the warrior skill “Fear Me.” It will now actually hit its range, but also have a falloff on fear duration based on distance.
Ink Shot: This skill is now a projectile combo finisher.
Tow Line: This skill is now a projectile finisher.
Escape (Harpoon Gun): This skill now creates a poison field with art changes to reflect this.
Ink Shot: Projectile speed for this skill has been increased by 22%
Instinctual Response: Now triggers at 10% damage instead of 20%.
Ricochet: Increased bounce chance from 5% to 20%.
Fleet Shadow: Increased move speed from 33% to 50%.
Slowed Pulse: This can now trigger every 20 seconds instead of every 30.
Pistol Mastery: Increased damage from 5% to 10%.
Improvisation: Now also increased damage with environment weapons by 10%.
Piercing Shot: This skill is no longer able to fire at enemies behind the player.
Ricochet and Pistol Mastery are probably the biggest things to note, although I'm unsure if those traits would be worth taking over the others in their line. 20% bounce with the firing rate of pistols might be acceptable, although I was really hoping for a fix on Vital Shot's bugged firing instead. Oh well, gift horse, mouth, etc.
edit: Ricochet is a tier 2 trickery trait, which means it's competing with one of the best Steal traits available: Bountiful Theft. Ouch. Likewise, Pistol Mastery is in the same tier as Practiced Tolerance.