Recoomend use of fish github master, for now.

proposals/semantic-prompts.md

@@ -325,6 +325,10 @@ Bash has very limited support for multi-line input editing.
 If you use [fish shell](https://fishshell.com/) use
 [this initialization script](./prompts-data/shell-integration.fish).
 
+This works best with [with GitHub master of fish](https://github.com/fish-shell/fish-shell/) along with pull requests
+[#6148](https://github.com/fish-shell/fish-shell/pull/6148)
+and [#6160](https://github.com/fish-shell/fish-shell/pull/6160).
+
 ## Zsh shell
 
 If you use [Zsh](https://www.zsh.org/) use