diff --git a/PLUGINS.md b/PLUGINS.md
index 9c685055..9d5c2917 100644
--- a/PLUGINS.md
+++ b/PLUGINS.md
@@ -230,11 +230,9 @@ with core EDMC or other plugins.**
 Use `number_from_string()` from EDMC's `l10n.Locale` object to parse input
 numbers in a locale-independent way.
 
-Note that in the following example the function signature defines that it
-returns `Optional[tk.Frame]` only because we need to allow for `None` if
-something goes wrong with the creation of the frame (the calling code checks
-this).  You absolutely need to return the `nb.Frame()` instance that you get
-as in the code below.
+Note that the old CamelCase versions of `number_from_string` and `string_from_number` do still exist,
+but are deprecated. They will continue to work, but will throw warnings.
+
 ```python
 import tkinter as tk
 from tkinter import ttk