Took a little look at the updates. Most you don't have to use if you don't want to. Others make changes easier. For instance if you open a hop and what you have has a different AA level you can change it right there. You don't have to go to the Add Hops tab to change it there then come back to the recipe.
I suggest to download it. Though YMMV.
Maybe I'm confused but couldn't you already do that by double clicking on the ingredient? You can change the name and pretty much all its values after adding it into the recipe. Same thing for malts.
Regardless some of the other features seem like a nice step up. Switching the weight setting from lb to oz and back all the time is a PITA so I love the idea of being able to directly input mixed units without the hassle.
Unless I have missed something for years.... I think that if you double clicked the ingredient and made changes in 2.2 that would change the specs for that ingredient in that recipe only. If you made a new recipe using that ingredient it would be without the correction.
Now you can change the specs to match your ingredients. So when you get your Amarillo 2017 and the AA are 1 percent higher than your 2016 ones you can make the change without opening a the ingredients menu, making the changes there then going back to the recipe.