Ignoring the fact that the boomerang change originated from a discussion Gimpyfish and I had, sure.
So did some other changes that haven't really been noticed/shown off yet, actually. Believe in the Alakadoof.
We don't know who did what, but I'm sure everyone must know most of PM Link was your doing. That said Hylian is clearly the best Link in PM right now so people trust him.
These are all the changes I have noticed so far from all the streams. These may or may not be true.
Dash attack: Melee animation. Still seems to be the same speed.
Utilt: Fix hitbubbles
Dtilt: Sped up (maybe different meteor hit bubbles. It seemed to land more often onstage.)
Usmash: hitbubbles fixed on sword.
Fsmash: fixed hitbubbles on second hit.
Fair: seems to start faster but this is highly unlikely imo.
Dair: seems that the forward hitting hit bubble bubble is still intact but I would assume the inner lower hit bubble is moved down over the sword tip.
Bow: arrows seem smaller and have either faster startup or endlag.
Bombs seem smaller. As a side note I'm liking the angle and distance return rang sends bombs.
annnnd
"
2.6 rang is much shorter and much faster than 2.5. It has a combo hit active the first 6 frames which does 16% and sends them at a similar angle to 2.1 rang, letting you combo off it easily if you get the combo hit. In addition to this, we removed the catching animation in every action except standing still. You can be running or jumping and it won't interrupt you anymore causing you to get punished for using your rang close and not being able to avoid it. The quickness of rang along with some other tools link has now makes him much better at close to mid range fighting and helps him deal with pressure. You can continue combos now that you couldn't before with rang, and you can use rang as an effective approach tool, a defensive mid-range tool, overall it's a lot more versatile and you don't need to fear it harming you or being used against you. It's much more dynamic than 2.5 or 2.1 rang's uses, try it out in combos next time you play and don't try to use it like 2.5."