My response to the news item was "not again!"
Checking the BBC archive I came up with 3 reports that it already had, in 2003, 2005 and 2012. To be fair in 2011, they reported that it hadn't yet!
It seems to be a good story to dust off the shelf every so often. The term, 'edge of the solar system' is meaningless. The answer depends on why you are asking the question, and that is probably determined by what you consider important. The scientists being interviewed for these reports seem to be interested in definitions for the sake of it.
Harvey: The Oort cloud is supposes to be nearly a light year away. Voyager 1 is around 17 light hours away! Perhaps that will give some idea of voyager's tiny journey in stellar terms. I really enjoyed that reply Aratus, still laughing.