According to the Canadian beer news, 

The Establishment Brewing Company has announced the release of the latest beer from its barrel-aging program.

Nectarine Dream (6% abv) is described as follows: 

A labour of love a year in the making, the 9th release from our barrel-aged series is tart, a bit funky, and has an amazing nectarine aroma. Our team spent a whole day last summer hand-pitting organic fruit from a BC farm run by a guy named Tree. It doesn’t get more organic than that. The beer wasn’t sour before we added the fruit; the natural cultures that exist on the nectarine skins did the souring work for us. The result is a bright, fruity, approachable barrel-aged sour.

Read more at source: Canadian beer news