Bitcoin Core fast-tracks security fixes as 44% of sampled nodes run unsupported versions

Bitcoin Core merged a rule change on Oct. 22 that opens a faster lane for vulnerability fixes: a flaw judged easy for attackers to find again can now be patched across every maintained release line at once, with an advisory published as each fix lands. The change comes as a network snapshot from the Karlsruhe Institute of Technology (KIT) shows 43.6% of sampled public Bitcoin Core peers running versions that no longer receive patches.