Bitcoin Core 32.0 Will Launch October 10
The upcoming software update introduces multithreaded transaction retrieval and patches a long-standing security flaw.
Updated on Oct. 8, 2026 in Cybersecurity
Live Poll
Will the Bitcoin Core 32.0 software update be released on October 10?
Bitcoin Core 32.0 is scheduled for release on October 10, 2026, featuring new performance improvements and a security patch for a wallet vulnerability. The update will be available as a software release that maintains current consensus rules.
Why it matters
This update optimizes how nodes handle transaction data and addresses a security risk that has persisted since version 24.0, allowing authenticated users to execute unauthorized commands through wallet names.
The update enables multithreaded transaction retrieval using eight threads by default, while four partially signed transaction commands now default to version 2. An audit identified a memory-exhaustion risk where 16 REST connections could spike memory usage to 3 gigabytes from 46 megabytes.
The players
Bitcoin Core
The primary open-source software implementation that maintains the node network and defines the protocols for the Bitcoin blockchain.
The details
The update improves performance by using multiple threads — individual instruction sequences handled by a processor — to retrieve transaction data from databases during block verification. It also introduces a secondary fee estimator designed to lower recommended network fees more rapidly during periods of reduced congestion. The security patch resolves a vulnerability where wallet names could be leveraged by authenticated users to run commands.
Timeline
September 14, 2026: Bitcoin Core 32.0 entered final testing.
October 10, 2026: The scheduled release date for Bitcoin Core 32.0.
The Tech Race
The release builds on the long-term maintenance of the Bitcoin Core client, which governs how nodes process transactions across the network. It addresses a vulnerability originating in version 24.0 while refining the efficiency of data retrieval to ensure better performance during network congestion.
The update is a software release intended for node operators and will not change Bitcoin consensus rules. Users should prepare for the transition to version 32.0 by auditing their current node configurations for potential memory impacts associated with the new web server.
The takeaway
The Bitcoin Core 32.0 release delivers critical security hardening alongside optimized transaction retrieval. Operators should verify their REST connection limits against the new memory usage benchmarks following the October 10, 2026 release.
Further reading
Learn more about the latest developments in protocol hardening and vulnerability management in the Cybersecurity section.
Live Poll
Will the Bitcoin Core 32.0 software update be released on October 10?
