This is the starter pack with the old revision of the Hue Bridge, if you look at the specifications it also looks like the LED lights are in a slightly older version too. The actual differences should be relatively small.

The biggest change in the Hue Bridge 2.0 is the support of Apple's HomeKit for home automation.

You can most easily tell the difference by looking at the shape: Hue Bridge version 1.0 is round Hue Bridge version 2.0 is square.