| ⇢ | A | UpgradeCommand added |
| ⇢ | B | UpgradeCommand::overrideSources() added | |
| ⇢ | A | UpgradeCommand::execute() added | |
| ⇢ | A | UpgradeCommand::clearCache() added | |
| ⇢ | A | UpgradeCommand::execRequirePlugins() added | |
| ⇢ | A | UpgradeCommand::__construct() added | |
| ⇢ | A | UpgradeCommand::configure() added | |
| ⇢ | A | UpgradeCommand::initialize() added | |
| ⇢ | A | UpgradeCommand::overrideComposerJson() added |