This is the specification for the Arduino library format, to be used with Arduino IDE 1.5.x onwards. rev.1 has been implemented starting with Arduino IDE version 1.5.3 (now superseded by rev.2) rev.2 ...

Introduced in Arduino IDE 1.6.4, Boards Manager makes it easy to install and update Arduino platforms. In order to provide Boards Manager installation support for a platform, a JSON formatted index ...