Phil Plait says

The wind is no longer at Voyager’s back. It’s in the heliosheath.

This means that in a few years Voyager will have left the solar system and be in the interstellar medium. Amazing.

He adds:

Imagine! It was launched before personal computers were everywhere, before cell phones, before the internet! But it was given a powerful boost by its rocket, and another by the two largest planets in the solar system as it swung by them. And now, in just a few more years, it will have left our nest forever.