The long distance bonus was apparently a tooltip mistake and it was actually doing 500% total at long range where as now it's supposed to be doing 400% (so a 20% nerf). In practice though I'm finding that it's only doing 250% total at long range instead of 400%. I think other people are having similar results because they're noticing that explosive shot (300%-400% total damage depending on the upgrade) is consistently doing more damage.
The minimum range for the bonus damage was also increased to 15m.
I still don't see how any of that breaks the character.
Longshot pre buff was just gross. It's normal now. It has low stamina cost, neglible cooldown, it's a detonator AND it hits multiple targets. Needless to say all of that even works the best from as far away as possible. It seems a little greedy to say a sheer damage nerf on a skill that still hits for 2,5k crits on multiple targets with virtually non-existent prerequisites was overly harsh. Just because you can't evaporate legions of mooks without putting down your coffee anymore doesn't mean the Archer is useless, or even weak.
That's like saying the Elementalist doesn't work anymore as soon as the Fade Cloak bug is fixed.
P.S.: Not that YOU said all of that, @FRZN. T'was just a good summary of the changes.