Although yesterday's breach of 85.71 and the subsequent gain to 85.99 (AUS) signal recent downtrend has made a temporary low at 85.02 on Friday and consolidation with near term upside bias is seen, reckon res 86.46 would cap present rebound and yield strong retreat later.  
On the downside, below 85.30 is needed to yield re-test of 85.02, then 84.82.