This is a detailed description of the major 2.0.0 release of BLE Serial. It is a tool to connect Bluetooth low energy 4. and 5.x (BLE) UART modules to virtual serial ports on Linux and now also COM ports on Windows. Backend Change In the first BLE Serial versions (1.0 up to 1.3) it used bluepy as bluetooth backend library. Problem with it was an open issue that required the manual installation of a fork, like described in the previous post about it. Now over the course of 2020 some PRs got me...