v3.10.0

• A new --list-all (alias -a) flag is now available. It's similar to the existing --list (-l) but prints all tasks, even those without a description (#383, #401).
• It's now possible to schedule cleanup commands to run once a task finishes with the defer: keyword (Documentation, #475, #626).
• Remove long deprecated and undocumented $ variable prefix and ^ command prefix (#642, #644, #645).
• Add support for .yaml extension (as an alternative to .yml). This was requested multiple times throughout the years. Enjoy! (#183, #184, #369, #584, #621).
• Fixed error when computing a variable when the task directory do not exist yet (#481, #579).