I am trying to upgrade Elasticsearch. Do I need to remove old .yml file while upgrading Elasticsearch to a newer version? In the documentation it is mentioned as -
''Use rpm or dpkg to install the new package. All files should be placed in their proper locations, and config files should not be overwritten.''
I didn't clearly understand this point. Do I need to install the new version and just forget about old Elasticsearch files? Can someone please explain what it means?