In case there are people out there who have not tracked this sort of thing :
https://blog.arduino.cc/2019/10/18/arduino-pro-ide-alpha-preview-with-advanced-features/
https://blog.arduino.cc/2019/10/25/new-arduino-pro-ide-a-closer-look/
BLOG pages say :
https://blog.arduino.cc/2019/10/18/arduino-pro-ide-alpha-preview-with-advanced-features/
https://blog.arduino.cc/2019/10/25/new-arduino-pro-ide-a-closer-look/
BLOG pages say :
"However, if you want to be the first to try it and give us feedback to help shape the product as we develop it, ... The preview is already available for Windows, Linux and Mac OSX."