What does this mean?

[MillersPlanet]

Can someone pls explain 

• Current version: S928BXXS4AYB7 / S928BOXM4AYB7 S928BXXS4AYB7

What does AYB7 stand for,

There are many users with BYd9 who received the update

What does ayb7 mean does it depend on the month of manufacture or a different variant?

[naviaz]

It is just a code given to certain software/firmware.

[ratan23]

Ayb is Indian version, byd is foreign version

[delarossi]

I also have the same AYB7 and no update yet

[prashant2630]

Indian version ko kab aayega ?

[MillersPlanet]

May end