Turn on discovery v5 by default #18578
Merged
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This turns on discovery v5 by default.
It adds
--discovery.v4so you can also disable v4.It prefers to use disc v5 for node resolution.
Most other changes are minimal changes from geth to maintain clean diff and updated behaviour around sources.
I expect there will be some rough edges but the sooner v5 is active in main the sooner those will come up.
Running with
--discovery.v4=falsemight be worthwhile for testing, and maybe in some QA workflows.