Companies that are able to have 100% uptime tend to have a leg up over the competition. They therefore can’t risk having any downtime, as this period offline can be harmful to their revenue, customer loyalty, and ultimately their bottom line.
Concern regarding downtime is one of the major reasons that companies may be hesitant about implementing changes to their applications and services, including minor updates. Should you keep a current/old version so that users won’t lose access, or should you launch the new version but risk pushing users away to the competition while you make updates?
This is where zero downtime deployment comes in. Companies can launch new versions of their applications and services without needing to have any downtime during the process.