Is Nestopia 1.41 (unofficial) any better?

There's an unofficial version of Nestopia 1.41 floating around, and I was wondering if anyone tried it. It's supposed to fix some kind of input lag issue and some other adjustments.

I never experienced any kind of lag with my USB controller with Nestopia 1.40. Is it only in certain games, or certain types of controllers? Also, are there any bugs with it that weren't in 1.40?

Just wondering if it's worth making the switch or not.

It's not worth switching.I tried the unofficial 1.41 version,and basically it's a 1.40 with modified interface.
And how can you even experience input lag on a NES emulator?
I'm using a Xbox360 controller and i have never experienced any kind of lag.