Just a heads up for those that use publish - todays git version does not
publish (or not here anyway). Backtracking to official 13a works fine.

I got this back trace from org-publish-current-file:

,----
| Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
|   file-truename(nil)
|   org-publish-file("/home/shamrock/webs/richardriley/index.org")
|   byte-code("?…	ÂÃ !)‡" [force org-publish-use-timestamps-flag org-publish-file buffer-file-name] 2)
|   org-publish-current-file(nil)
|   call-interactively(org-publish-current-file)
|   org-export(nil)
|   call-interactively(org-export nil nil)
|   recursive-edit()
|   byte-code("Æ	@Ç=ƒ!ÈÉÊ\"ˆËÉ!‰A@)¢Ì=ƒ!ÈÍÊ\"ˆÎ!ˆÏ ˆÐ	!ˆ\fƒdÑed\"
VƒWebˆÒ
¥yˆ`dbˆÒ
¥
Zyˆ`|ˆ)ÓcˆebˆÔÕÖ \"ˆ×Æ!ˆÔØ!ˆÙÊÔØ!ˆŠÚ ˆ+Ù‡" [unread-command-char debugger-args x debugger-buffer noninteractive debugger-batch-max-lines -1 debug backtrace-debug 4 t backtrace-frame lambda 5 pop-to-buffer debugger-mode debugger-setup-buffer count-lines 2 "...\n" message "%s" buffer-string kill-emacs "" nil recursive-edit middlestart buffer-read-only standard-output] 4)
|   debug(error (wrong-type-argument arrayp nil))
|   file-truename(nil)
|   org-publish-file("/home/shamrock/webs/richardriley/index.org")
|   byte-code("?…	ÂÃ !)‡" [force org-publish-use-timestamps-flag org-publish-file buffer-file-name] 2)
|   org-publish-current-file(nil)
|   call-interactively(org-publish-current-file)
|   org-export(nil)
|   call-interactively(org-export nil nil)
`----

regards

r.