Hi Moritz & Bastien, This bug fix seems not to be complete. At least switching the todo state in repeated tasks and in conjunction with org-checklist didn't work for me as it used to before the last update. PFA a patch that solved the problem for me. ATTENTION: Please check this patch very carefully. This is my first contribution to org-mode and my first patch ever. My lisp knowledge is rudimentary and I do not really understand the code. Thanks to all developers for your work! Best regards Michael Strey On Sun, Apr 01, 2012 at 05:01:12PM +0200, Moritz Ulrich wrote: > Commit 6cbf1f417222321a47848a7368427ba8a22fe3a5 renames variable > `last-state' to `org-last-state' in org.el. This change isn't > reflected in function `org-todo'. > > That causes the following regression: Toggling a TODO state to DONE on > a headline via C-c C-t (`org-todo') results in: "Symbol's value as > variable is void: org-last-state". > This is reproducible in latest HEAD and even in tag 'release_7.8.07'. > > M-x emacs-version: GNU Emacs 24.0.94.1 (i386-apple-darwin11.3.0, NS > apple-appkit-1138.32) of 2012-03-12 on moritz-macbook.local > > The attached patch contains a simple (two line) fix.