Download and install the Processing and Arduino software if you haven't already. You also need to download the Arduino compatible USB drivers so your machine can properly interface with the Arduino.

Arduino has today announced the availability of the latest Arduino IDE in the form of version 1.6.6 which has now been released and is available to download.

The official Arduino development team has today announced the release of Arduino 1.8.13,bringing with it new improvements, bug fixes and tweaks.