Today's low was to the pip at 1.5959 level (0.1 pip lower to be precise), making the inverted still a valid potential pattern to watch for.
First test would be a break above 1.6103 for the IHS to be validated. Today's candle so far is shaping up to be a Piercing Line pattern. There's still some 6 hrs left and unless something adverse happens that would see declines in GBPUSD , we can take today's candle to be .
Long term, 1.64342 will be the first target, while waiting for a confirmation of the resumption of the uptrend (more on this later).