Which version for RaspberryPi3?

Help and Support
1

I see that are many beta downloads… Wich one is the best for RaspberryPi3?

Specifications
SoC: Broadcom BCM2837
CPU: 4× ARM Cortex-A53, 1.2GHz
GPU: Broadcom VideoCore IV
RAM: 1GB LPDDR2 (900 MHz)

2

One with an arm suffix, not arm64.