3.1 Kickstart 40.70 vs 40.68?

[Franko]

I recently got an Amiga 3000 that has kickstart chips 40.70. Just wondering what the difference is with the 40.68 ones? I had never seen 40.70 before except on a 4000T
 
thanks
 
PD: It does say on the sticker "Pilot Production Version"
 
Reads as 40.70 inside workbench as well

The 40.68 ones were made for the A1200, and the 40.70 ones were for the A4000, I don't think you can use the 40.68 version in an A4000.

[Franko]

The 4000s I ahve seen alll use 40.68 except the 4000T (40.70). That is why I thought is was weird to see a 40.70 for teh 3000

Can't find any details anywhere about the difference between the 40.68 & 40.70 versions. I can only think they must have done a few bug fixes in the 40.70 ones to fix some problems on the A4000...