Final answer:
Several versions of Splunk can perform searchable rolling upgrades, such as version 7.3.
Step-by-step explanation:
Several versions of Splunk can perform searchable rolling upgrades.
A rolling upgrade in Splunk allows system administrators to upgrade their Splunk deployment without any downtime. During a rolling upgrade, some servers in the Splunk deployment are upgraded while others continue to serve search requests.
For example, starting from version 7.3, Splunk introduced the ability to perform a rolling upgrade from 7.2.x version, allowing users to seamlessly upgrade their Splunk deployment without disruption.