clojure/tools.cli — comment on commit 439917eda8899f90ad75cc92fe37e966420df043
File:  line 0
By abedra:

That's why there are maven releases. If you continue to use 0.1.0, nothing will break for you. If you want to move to 0.2.0+ you will need to adjust your code. This was discussed at length on the list.