Schematic for STM32F469I-DISCO B03

[MD'Sy]

Last week I bought a few STM32F469I-DISCO boards from DigiKey. Today I wanted to look at the schematic and found that there are two revisions available, B07 from 2015 and C01 from 2020.  But I have B03!  

I'm wondering how old my board actually is, and if there is a schematic available for it. As I bought it last week, I was expecting it to be a current C01 version.

[Uwe Bonnes]

Do you see anthing on the board silk screen that could be interpreted as date code? E.g. for some M24SR-Discovery I see 1402, probably Feb. 2014. B03 would really be old. Does DK now sell NOS?