While a number of Stone Brewing festivals got the axe this year, Sour Fest seems to have survived the cull. Tickets are on sale now for those interested. Unfortunately, the Stone 21st Anniversary event has not yet been confirmed for 2017.
However, a page on Stone’s website (since taken offline, and likely accidentally published in the first place) mentioned the 21st Anniversary and a date of August 19th, which is in line with previous years (and would place the Brewers Reception on Friday 18 August 2017). Hopefully Stone will confirm both the event and its dates in the near future. Some of us have to make travel plans, after all.