There wasn’t all that much of a change. You can look for yourself should you choose. However. . .
The consulting group who designed it had a 27-page pdf describing the change in which they reference such stuff as the Golden Ratio, the Earth’s magnetic field, the expansion of the universe, and, eh, “perimeter oscillations.”
Marketing teams gotta market.
The new CEO must have been a former Math teacher; “I really like this new design, but I’m going to need you to show your work before I present it to the board.”
That was the most breath-takingly stupid thing I have ever read.
I despise marketing.
Someone had too much time on their hands!
As someone who’s spent his career working in marketing and advertising: I hate bad marketing. Consultants, in particular, are often really good at spinning BS-filled presentations which are built to give the decision-makers at their clients numerical, logical-sounding reasons to say “yes,” and to justify the large fees that they’re charging.
I did mentally add “with apologies to kenobi_65” as I submitted that! 
Wonder if it’ll raise the same ruckus as the new Cracker Barrel logo?
Damn straight! I mean, taking the original Pepsi Cola script with all the fancy curlicues and applying a Spirograph to all the curves to illustrate - what?
Best response to the new Cracker Barrel logo was, “They removed the barrel and the cracker”.
I like humor site theoatmeal.com’s take on the new Pepsi logo.