Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
Install host dependencies.
Import toolchain and SDK.
Create, configure, build and manage apps.
Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench
There will not be a product installer for the v1.4 release. Instead, you should download the v1.3 release and update the tool through “Help” > “Check for updates...”.
And yes, the v1.4 release includes in particular support for F4 HAL v1.8. library.