LICENSE file could be added to ArduinoCore-avr

[DerAndere1]

A LICENSE file in the ArduinoCore-avr repository would make it easier to be sure about the license status of the included files. Currently users have to check the license information in each individual file before e.g. copying / forking this repository. Otherwise there is no way to be sure that the information "the C/C++ microcontroller libraries are under the LGPL" (see Arduino FAQ) refers to the whole content of this repository.
You could start by checking whith your lawyer if LGPL 2.1 or newer would be the best choice for the LICENSE file or if the LICENSE file has to specify the license for each file individually.

[platisd]

This would be really helpful. Any updates? As long as there is no license, the contents of this repo that don't explicitly specify one are technically proprietary and no one is allowed to use them as far as I know. 😕