Bash-it previously did not specify compatibility with any particular
Bash version, but uses features in Bash 3.2 (like omitting quoting for =~
expressions) while ignoring features in Bash 4 (like associative
arrays). By explicitly mentioning the minimum supported version, it is
easier for contributors to understand which shell features are usable.
Nils Winkler
Jean Jordaan
Dan Wendorf