Which of Hemingway's novels was published posthumously in 1970?

Hemingway’s novel Islands in the Stream was published posthumously in 1970. Hemingway began developing the work in the early 1950s, but he died in 1961 before the manuscript could be prepared and published as a finished book.

The novel follows Thomas Hudson, an American painter whose life unfolds across three sections originally associated with Bimini, Cuba, and the sea. Its settings and themes draw on Hemingway’s experience of fishing, the Caribbean, and life around Havana. After Hemingway’s death, his widow Mary Hemingway and editors worked through the surviving manuscripts and shaped the published volume.

The choices can be confusing because Hemingway had several posthumously published works. A Moveable Feast appeared in 1964, while The Garden of Eden was published in 1986. True at First Light, based on his African writing, appeared in 1999. Islands in the Stream is the one specifically associated with the 1970 publication date, and it became the first of Hemingway’s posthumously published novels.