New features
This release adds the digit-argument and universal-argument machinery to Hydras. Now, each Hydra will automatically bind: 0 - 9, - and C-u. Note that digits can be used plainly, i.e. not as M-2 or C-2, but as 2.
This also means that you should try not to use the above keys as prefixes for Hydra heads.
Fixes
The heads calling hydra-disable were finally fixed for Emacs 24.4.1, thanks @bcarell.
This was hard to do, because three different Emacs versions needed three different approaches to do this.
Just a reminder:
(global-set-key
(kbd "C-c C-v")
(defhydra toggle (:color blue)
"toggle"
("a" abbrev-mode "abbrev")
("d" toggle-debug-on-error "debug")
("f" auto-fill-mode "fill")
("t" toggle-truncate-lines "truncate")
("w" whitespace-mode "whitespace")
("q" nil "cancel")))Here, all heads will call hydra-disable since they are all blue (because the body :color is blue).
Even if the body :color was red, q would still call hydra-disable, because q has nil instead of a function name.