diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca637b2d6..b046698b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -59,6 +59,7 @@ This section is for changes merged to the `major` branch that are not also merge
 - The universal variables file no longer contains the MAC address. It is now at the fixed location `.config/fish/fish_universal_variables` (#1912).
 - `alias` now has a `-s` and `--save` option to save the function generated by the alias using `funcsave` (#4878).
 - Path completions now support expansions, meaning expressions like `python ~/<TAB>` now provides file suggestions just like any other relative or absolute path. (This includes support for other expansions, too.)
+- The `string` builtin has new commands `split0` and `join0` for working with NUL-delimited output.
 
 ## Other significant changes
 - Command substitution output is now limited to 10 MB by default (#3822).