What is the difference between sensor 89892-47020 and 89892-47080

I am replacing an 89892-47080 sensor in my HV battery pack. I ordered what was supposed to be a new 89892-47080, but upon arrival and opening the package, I was sad to see it was an 89892-47020.

I understand that 89892-47080 replaced the 89892-47020 in or about 2012.

Of course, I wonder why Toyota would need to replace a functional and working part, that looks the same and performs all the same functions unless the newer part was cheaper to manufacture and/or the newer part corrected a weakness that the original may have had.

I'm just a little perturbed at the seller sending an older part when I did not haggle on price and passed up on purchasing less expensive used 89892-47080 sensors and much cheaper 89892-47020 sensors.

But....I do have the 89892-47020 sensor and I wonder what problems I may have if I install it, now, or in the future, that I would not have if a sensor 89892-47080 had been used?