ajalt/clikt 4.3.0 on GitHub

Added limit parameter to option().counted() to limit the number of times the option can be used. You can either clamp the value to the limit, or throw an error if the limit is exceeded. (#483)
Added Context.registerClosable and Context.callOnClose to allow you to register cleanup actions that will be called when the command exits. (#395)

Fixed unrecognized modifier 'i' that happened on tab-completion when using sub command aliases. Thanks to @hick209 for the contribution. (#500)
Make sure auto complete script works on zsh, fixing the error complete:13: command not found: compdef. Thanks to @hick209 for the contribution. (#499)