BA II plus calculator. is my old version ok?

It looks like the changed it.

I used to have this.

http://www.amazon.com/gp/product/B00HX6N2WW/ref=gno_cart_title_1?ie=UTF8&psc=1&smid=A1YI3GT2AFGM8D

But now they look like this

http://education.ti.com/en/us/products/calculators/financial-calculators/baii-plus-professional/features/features-summary

I don’t think it should be a problem. The logic dictates that new models are more likely to be a problem (which is not). By approving specific model, CFAI set the maxium technical help that you get from the calculator, a.k.a making remember formulas, instead of making calculator calculate it for you.