The most recent update to Bitcoin Core, the primary open-source software powering the world’s largest cryptocurrency’s blockchain connection, has been rolled out. The v26.0 upgrade incorporates experimental backing for the ‘v2’ transport protocol outlined in Bitcoin Improvement Proposal 324 (BIP324). This protocol aims to encrypt node communication, reducing the vulnerability to attacks that manipulate transactions.
As stated in the proposal, the objective of the new P2P protocol version (v2) is to significantly increase the costs associated with such attacks, primarily through unauthenticated, opportunistic transport encryption. The proposal emphasizes that employing encryption, even in its unauthenticated state and exclusively when both endpoints support v2, hampers eavesdropping by necessitating the attacker to become active. While the existing V1 transport protocol is still maintained, users must actively enable V2 to utilize it.
Dhruvkaran Mehta, a notable Core contributor, introduced BIP324 but subsequently shifted focus to a Bitcoin-related startup earlier this year. Additionally, the upgrade brings about diverse modifications to remote call procedures (RPCs), encompassing wallet-related alterations and adjustments to Bitcoin’s graphical user interface (GUI).
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