Yes it has, as note above.
If you are still on KitKat (4.x.x), I'd say stick with that. If your device is running smoothly and you've had no issues, IIABDFI (If It Ain't Broke...). IMHO.
If, on the other hand, you're already on Lollipop (5), I'm going to suggest that you'll regain some stability on your device (if only on Chrome) and speed by 'upgrading' to 5.0.2.
Some are commenting they are finding dramatic speed and battery improvements with 5.0.2 - but its unclear to me as to whether that's in comparison to the truly awful 5 (and they're simply thankful for anything that restores useability) or their earlier OS. In my case, I'm not sure that I'm just not willing it to be better than 5, when actual improvement is less definable.