The 1.7.0 Release of the Zephyr Project was made on March 11th.

The 1.7 Release is now available for download! Check out the new features and board support https://t.co/RiacdZeeZL

— Zephyr Project (@ZephyrIoT) 14 mars 2017

A full changelog of this release is available on the project release notes page.

BayLibre contributed support for the STM32L476 microcontroller series with the Nucleo-L476RG board.

In addition to the platform support, patches for the following devices were merged :

• I2C for the whole STM32Lx family
• UART support
• Clocks control
• GPIO/Pinmux control
• EXTI Support