and stack usage. 'max-specpdl-size' is still present as a plain
variable for compatibility but its limiting powers have been taken away.
+** New function 'external-completion-table'.
+This function returns a completion table designed to ease
+communication between Emacs's completion facilities and external tools
+offering completion services, particularly tools whose full working
+set is too big to transfer to Emacs's every time a completion is
+needed. The table uses new 'external' completion style exclusively
+and cannot work with regular styles such as 'basic' or 'flex'.
+
\f
* Changes in Emacs 29.1 on Non-Free Operating Systems