I really didn't know if I should write a post about this, but after reading up on the PurseForum, people do seem to be interested to know whether their was a change in Phoebe Philo's handbag designs now that Hedi took over Céline.
Luckily, I do own an "old" Céline Nano Belt bag in the colour Light Taupe as well as a "new" one. I purchased the first Belt Bag a few months before Hedi presented his first collection at Celine. I loved the bag so much that I did end up buying another Nano Belt bag in Grey in late 2018. This bag however already had the new CELINE logo that Hedi introduced.
I thought it might be helpful to see what exactly the difference is between the old and new Belt Bags, other than the obvious Logo change. I'm going to let you know if there is any difference in hardware, leather, overall quality etc.