This guide will help you setting up your Mac if you want to install the experimental version of the Arduino IDE 1.6.1.
Before you continue reading, please consider installing the recommended version from the download page, it's the most used, and the easiest to get support.
Follow our Getting Started guide for Mac OS X if you need support when installing the IDE.
The Arduino IDE uses Java, a platform that simplifies running software on different operating systems, in particular on Windows, Mac OS X and GNU/Linux.
Sometimes, when installing the recommended Arduino IDE for Mac OS X you can get a Java error. This can be due to some incompatibility, or to the fact that the Java version you have installed is quite old.
Apple doesn't automatically update the versions of Java installed on your computer: you need to download and install it yourself before running the Arduino IDE. Also, recent Java versions are only available for Mac OS X 10.7 Lion or newer because they run only on 64bit Mac.
If the Arduino IDE does not start, the experiment with this experimental version has failed. Please open an issue on our code repository: we both want this installation to succeed.
The text of the Arduino getting started guide is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the guide are released into the public domain.