Mixeway is designed and implemented in a consistent manner.
Usage of Mixeway is based on running properly prepared container. Mixeway application that is running in the backend is dealing with migration policies.
You are safe to update from any version of Mixeway to any newer version.
Note: reverting from newer version to the older one is not supported and may corrupt the database.
In order to update mixeway simply pull newer container image and then deploy it to Your environment, e.g.:
docker-compose pull docker-compose up -d