It is only included when adding the tag by pressing Cmd+D or clicking the dash.
Is this the correct behaviour? I was expecting otherwise, but I'm just getting to know the app, so... ¯\_(ツ)_/¯
[ TaskPaper 3.7.5 Preview (305) ]
I think you may find what you need in Preferences:
Thanks for your reply, but I’m afraid I haven’t made myself clear. That option is checked in my preferences. It’s just that nothing happens when I type the tag. If I click the task or hit cmd+d, it works as expected.
That is by design - a date is added only by the ⌘D toggling command.
( You could set up a Keyboard Maestro (or snippet-expander) macro if you would like dates to be inserted whenever you type that tag in full).