How to open new window/pane in the current working directory in tmux?

[openbsd-misc-nospam]

I have next options in tmux.conf:

bind '"' split-window -c "#{pane_current_path}"
bind % split-window -h -c "#{pane_current_path}"
bind c new-window -c "#{pane_current_path}"

But it doesn't work anymore. And I can't find working options in Google. I tried
all suggestions from stackexchange and it doesn't work either. What working 
options
for OpenBSD 6.6?

Thanks!