--- upgrade: - | A new request_log middleware is created to log REST HTTP requests even if Nova API is not running under eventlet.wsgi. Because this is an api-paste.ini change, you will need to manually update your api-paste.ini with the one from the release to get this functionality. The new request logs will only emit when it is detected that nova-api is not running under eventlet, and will include the microversion of the request in addition to all the previously logged information.