FreeRTOS+IO [deprecated]

It looks like FreeRTOS+IO is deprecated[1].

What should be used instead?

[1] FreeRTOS+ Feature libraries designed to work with FreeRTOS

Maybe something like this?[1][2]

[1] Porting the common I/O libraries - FreeRTOS

[2] Common I/O: iot_gpio.h File Reference

Yes, the common IO libraries are preferred in place. Common IO is used for things like UART access in the cellular interface libraries already, and are intended for use in other use cases in the future.