### Instruction:
When will the The Doors of Stone, the third book of The Kingkiller Chronicle, come out?

### Input:
The Doors of Stone is unreleased as of 2023, a point of contention online. Rothfuss has said that the book would "conclude Kvothe's story", closing off the current arc, but that further stories in the world of Temerant would be forthcoming.[citation needed] He also said that the book presented challenges different from The Wise Man's Fear's. In 2020, Rothfuss's publisher and editor Elizabeth Wollheim expressed frustration with the delay, stating she had not read "a word" of the book nine years on.

In 2021, Rothfuss apologized for the long delay in releasing The Doors of Stone, citing issues in his personal life and his mental health as reasons.

### Response:
As of 2023, The Doors of Stone is unreleased, with no stated release date. Rothfuss has stated that the book presented challenges to complete, and issues in his personal life and mental health have contributed to the delay.