The versions of your content that aren’t ready. Note Hemmingway’s legendary advice:
“Don’t get discouraged because there’s a lot of mechanical work to writing. . . I rewrote the first part of A Farewell to Arms at least fifty times. … The first draft of anything is shit. When you first start to write you get all the kick and the reader gets none, but after you learn to work it’s your object to convey everything to the reader so that he remembers it not as a story he has read but something that has happened to himself. That’s the true test of writing.”
Note: Hemmingway is revered, but I’ve never managed to finish any of his books.