What is the difference between R5F562T7DDFF#V3 and R5F562T7DDFF#V1?

What is the difference between R5F562T7DDFF#V3 and R5F562T7DDFF#V1?

We couldn't find the definition of V1 in the datasheet.

Product ID code means? ct ID code means?  What does Product ID code means?