If IPC::Run3::run3 throws an exception it will now fail the test (with a helpful diagnostic) rather than crashing the test script.
A script that is killed with a singnal is now considered a failure as well.
Use alternate expected exit and signal values with options as the second argument to script_runs.
Ability to pass input via stdin to the script with script_runs.
Ability to capture stdout and stderr from script with script_runs.
Functions to test stdout and stderr: script_stdout_is script_stdout_isnt script_stdout_like script_stdout_unlike script_stderr_is script_stderr_isnt script_stderr_like script_stderr_unlike