Bitcoin Core Implements Policy to Backport Security Fixes as 44% of Nodes Run Unsupported Versions

Policy Amendment Expands Security Coverage

Bitcoin Core developers approved a policy amendment on Oct. 22 that enables backporting fixes for easily rediscovered vulnerabilities to every maintained release line. The change includes publishing security advisories alongside each update to alert node operators of critical patches.

Network Vulnerability Exposed

A network snapshot taken on Oct. 18 identified 3,671 self-reported Bitcoin Core peers running release lines that had already reached end of life, representing 43.6% of the total 8,422 nodes surveyed. This concentration of outdated software creates potential attack vectors for vulnerabilities that could otherwise be mitigated through timely updates.

Developer Response to Widespread Risk

The policy shift reflects growing concerns over the prevalence of unsupported node versions across the Bitcoin network. By standardizing the backporting process, developers aim to reduce the window of exposure for critical security flaws while providing clearer guidance to node operators who may lack resources to upgrade immediately.

Source: CryptoSlate