Function multi-versioning

Function multi-versioning is like having different versions of your favorite book. You know how sometimes a story can have different endings or changes depending on the edition or version you read? That's what multi-versioning does for computer programs.

When computer programs are made, they have a bunch of functions that make them work. Sometimes, different versions of these functions are needed for different situations. With function multi-versioning, the computer program can have different versions of the same function, and the program can choose which version to use depending on what it needs.

So, it's kind of like having multiple copies of the same book with different endings, but the computer gets to decide which version to use based on what it needs to do. It's a helpful way to make sure the computer program can do what it needs to do in different situations.