I normally use C-RET to enter a new headline and then press TAB to make it child headline. Recently it stopped working and I think I have it tracked down to the change that was made last week. I could be missing something that allows “TAB” to work for a kdb binding, but the previous format of "<tab>" works.

Emacs  : GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin20.5.0, NS appkit-2022.50 Version 11.4 (Build 20F71))
 of 2021-07-06
Package: Org mode version 9.4.6 (9.4.6-10-gee652a-elpaplus @ /Users/bartm002/.emacs.d/elpa/org-plus-contrib-20210705/)

In commit 565361eb69 org-keys.el line 445

(org-defkey org-mode-map (kbd "TAB") #'org-cycle)

This does not work for my configuration and tab ends up bound to outline-cycle instead.

If I change “TAB” back to “<tab>” and byte compile org-keys.el then the tab key gets bound to org-cycle
(org-defkey org-mode-map (kbd "<tab>") #'org-cycle)