Is there any update on this topic?

I have an installation of RPi::WiringPi that works fine on an RPi 3B+, but was wondering if there is a version known to work with an RPi 4B. I am working on a Perl si5351(programmable RF oscillator chip) driver for the Adafruit si5351 break out board. I would like to be able to move to the RPi 4 in the future.

I found a post from steveb(no relation to our stevieb,that developed RPi::WiringPi) who works with the Zynthian Open Synth Platform project that has built a WiringPi 2.60 http://github.com/steveb/WiringPi/tree/master. Any idea if this works with RPi::WiringPi on a RPi 4?

Thanks

James