| ⇢ | A | ErrorOutcome added | |
| ⇢ | A | IsolationRunner added |
| ⇢ | B | IsolationRunner::run() added | |
| ⇢ | A | IsolationRunner::__construct() added | |
| ⇢ | A | ErrorOutcome::getType() added | |
| ⇢ | A | ErrorOutcome::getPayload() added | |
| ⇢ | A | ErrorOutcome::__tostring() added | |
| ⇢ | A | ErrorOutcome::__construct() added | |
| ⇢ | A | EngineFactory::setRunner() added | |
| B | ↗ | A | TestCommand::configure() improved |
| B | ↘ | C | TestCommand::execute() got worse |