Elliott B wrote: ↑
Sun Jan 10, 2021 6:27 am
What’s the difference between rpt2 and rpt3?
The "rpt" designations are the Raspberry Pi Trading update version numbers. Just like the "debVuN" designations are the debian specific Version and Update numbers (Debian 10 Update 1 for example).
If everything is recompiled for armv6, does that have a performance impact on a Pi 4 for apps optimized for armv7 or 8?
A bit, but not much.
However the ARMv8 CPUs support 64-bit and there is a 64-bit version of Raspberry Pi OS in progress which should offer a some performance advantage on the Pis that support it. Of course there will also be code that works better in 32-bit, but you can't win them all.