diff --git a/GLFW-4.0-sketchbook.md b/GLFW-4.0-sketchbook.md
index b479123..51c8888 100644
--- a/GLFW-4.0-sketchbook.md
+++ b/GLFW-4.0-sketchbook.md
@@ -34,3 +34,4 @@
 - Remove window parameter of clipboard functions
 - Remove auto-iconification
 - Remove `GLFW_CURSOR_HIDDEN`
+- Return (English, l10n-able) known names for all known keys