instruction: When will George R.R. Martin release the sixth book in the series "A Song of Ice and Fire"?
response: No release date has been announced yet for the sixth book titled "The Winds of Winter." Author George R.R. Martin previously indicated on various occasions that it would be released in 2016, then 2017, then 2018. In October 2022, he appeared on "The Late Show with Stephen Colbert" and said that approximately three-quarters of the novel had been written.