Here is a second beta test for Teensyduino 1.45.

Linux 32 bit:

Linux 64 bit:

Linux ARM: (coming soon...)

Mac OS-X:


Changes since Teensyduino 1.45-beta1

Add 256 MHz Teensy 3.6 to Tools > CPU Speed menu
Fix asm in delayMicroseconds on Teensy LC (Frank B)
Audio: Fix ADAT output with 168 MHz (Frank B)