The is the first release of the Zephyr SDK that utilizes crosstool-ng to build the toolchains. We utilize crosstool-ng-1.24.0-rc2.

Toolchain version:

• GCC 8.3
• GDB 8.2.1
• BINUTILS 2.32
• NEWLIB 3.1.0 (except on xtensa)

We continue to utilize yocto to build the hosts tools:

• Qemu 3.1.0 (SHA: 32a1a94dd324d33578dca1dc96d7896a0244d768)
• OpenOCD 0.10.0 - snapshot from 20190226 (SHA: f21c12abecb9df244f147740166378ede7ea398e)
• bossa 1.9.1 (SHA: 3279031813093aa404b8561c8dd7a39dd24ebc70)
• dtc 1.4.7+ (SHA: 78e113e81c9d33d0f33704b187a46399d5a75419)