Blog post announcing this: <a href="https://blog.arduino.cc/2019/10/18/arduino-pro-ide-alpha-preview-with-advanced-features/" rel="nofollow">https://blog.arduino.cc/2019/10/18/arduino-pro-ide-alpha-pre...</a><p>From that github repo: "Before releasing the source code we want to move out of the alpha and we want your feedback to do this! Please test the Arduino Pro IDE and report bugs or feature requests at: <a href="https://github.com/arduino/arduino-pro-ide/issues" rel="nofollow">https://github.com/arduino/arduino-pro-ide/issues</a> "<p>I was about to complain about that but then I realized it's an electron app and the source is in their release anyway which just makes this a slightly weird statement.