SHELL_VERBOSITY env var to control verbosityCommandLoaderInterface, FactoryCommandLoader and PSR-11
ContainerCommandLoader for commands lazy-loadingCommand::$defaultName/getDefaultName(), allowing for
commands to be registered at compile time in the application command loader.
Setting the $defaultName property avoids the need for filling the command
attribute on the console.command tag when using AddConsoleCommandPass.ExceptionListenerAddConsoleCommandPass (originally in FrameworkBundle)Input::getOption() no longer returns the default value for options
with value optional explicitly passed emptyCommandNotFoundException through the
console.error eventSymfonyQuestionHelper::asksetInputs() method to CommandTester for ease testing of commands expecting inputssetStream() and getStream() methods to Input (implement StreamableInputInterface)ListCommandApplicationApplicationTester::getDisplay() and CommandTester::getDisplay()setCurrent method'-a|-b|-c'--process-isolation switch--, which disables options parsing after that point
(tokens will be parsed as arguments)