The nodes info API to allow for simpler usage and specifying which part of the info to get back. By default, it just returns the attributes and core settings of the node (breaking change!).

Also, allow also for /_nodes and /_nodes/{nodeId} endpoints (with the smart nodeId resolution, can be name, hostname, IP, with simple wildcards).

The flags: settings, os, process, jvm, network, transport and http, can be set to true to return the relevant info. For example: /_nodes?os=true&process=true.

Specific endpoints to further simplify it are provided, for example: /_nodes/process, or /_nodes/192.*/process.