This pair denotes how many Australian Dollars are needed to purchase one British Pound. Often, the Australian Dollar is referred to as a risk currency due to its relatively higher interest rates and correlation to global equity markets. The British Pound depreciated relative to the Australian Dollar after 2008 and only began making a significant rebound in 2013 in light of declining growth in China and a slowdown in the global commodity supercycle, which has hurt Australia's largest sector, mining.
The risk remains for another low in GBPAUD before resumption of the broader uptrend. Here are the updated targets & invalidation levels that matter.