Anyhow, all unbeknownst to us, van Vogt had coined fix-up, probably back in the 50s, and the term stuck and spread, enough to get a Wikipedia article which mentions some non-sf fix-ups by Sherwood Anderson, Hammett, and Faulkner.

More recently, Le Guin has described her 1990s collections Four Ways to Forgiveness and A Fisherman of the Inland Sea as “story suites”, in the musical sense of “suite”. The individual stories are not made to disappear (which is also true of some of the classical fix-ups, like Henderson’s No Different Flesh, which has a frame story but keeps the original stories and their titles intact), but they are meant to be read together and in order, and share not only the background but also many of the characters. The same is true of Changing Planes (2003).