ARM vm limitations ?

Hi, I'd like to play around with pharo on ARM devices (like a HummingBoard, the ones from ODROID or one of the beagleboards). But I am not sure if I have to take care of the ARM architecture version (ARMv6 / ARMv7 / ARMv8) when choosing my toy. I found this vm: http://files.pharo.org/vm/pharo-spur32/linux/armv6/ Is it only for armv6 like the folder name says or is ARMv7 and ARMv8 working too? Are there any limitations I should know before choosing a ARM device? Is there a vm for 64bit (aarch64)? Thanks! Albrecht