# Migrating an MQSeries Control 8.1 SP3 JCX File

When you migrate a workflow containing the MQSeries control version 8.1 SP3 to a workflow containing the MQSeries control version 8.1 SP4, you must make the following changes to your workshop application:

- Delete the MQControl.jar and the MQSchemas.jar files of version 8.1 SP3 from the Libraries folder of the workshop application.
- Add the MQControl.jar and the MQSchemas.jar files of version 8.1 SP4 to the Libraries folder of the workshop application.
- Add the following MQSeries control version 8.1 SP4 annotations to the existing MQSeries control version 8.1 SP3 JCX file:

- * @jc:ConnectionRetrySettings retryCount="30" retryWaitTimeInMilliseconds="1000"
- * @jc:SSLSettings sslRequired="false" twoWaySSLRequired="false"