@nickhills , We are planning to upgrade our DS to splunk 9.0 however our splunk hf, indexer and sh are having splunk 8.1.2. In case of app deployment, we can do it from higher version of DS to lower version but my concern is as we are also monitoring Deployment server performance data (cpu, memory usage etc) in SH so will that impact the data flow from if we only upgrade our DS higher than indexer, SH?
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