Serial port greyed-out for NANO boards

Development Tools IDE 1.x
1

After update Boards Manager - Arduino AVR Boards 1.8.3 to version 1.8.5 serial port greyed-out for NANO boards. No problem with Arduino Uno.

After switch back to version 1.8.3 connection can be make with Nano boards.

2

Strange. What does your operating system (which one) think about your boards after the upgrade?

3

OS for this PC is Linux Mint 19.3 - there was no upgrading or installing other software
On Windows 10 and Ubuntu 22.04 the serial port greyed-out for NANO boards (Arduino AVR Boards version 1.8.5).
Today updating Ubuntu 22.04, result port for Arduino Nano now not greyed-out. But for compatible JOT-IT Nano serial port is greyed-out (New optiboot software loaded with Mint PC).