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Bitcoin developers have introduced an upgrade that changes how the network manages transaction memory, while also adding privacy features and performance improvements in the Bitcoin node software.
The announcement targets Bitcoin researchers, miners, and wallet infrastructure providers, with a major change introduced in the cluster mempool design. The mempool is the “waiting room” where transactions sit before miners include them in blocks.
Under the redesign, transactions are organized into clusters rather than being handled through imposed limits. The system is intended to improve transaction selection for blocks, increase fee efficiency, and better manage complex transaction packages.
The update is also designed to help nodes make better decisions when prioritizing transactions by fees. In addition, it allows users to replace a pending transaction with a higher-fee version, aiming to ensure the replacement improves the mempool’s overall fee structure.
Bitcoin node software v31 also includes privacy improvements. On the privacy front, transactions can only be broadcast through the Tor or I2P networks.
The stated advantage is that a user’s IP address is hidden, and multiple transactions cannot easily be linked together. Developers say this will improve privacy for Bitcoin users running their own node.
To support faster node synchronization and quicker block validation, the default database cache was increased from 450 MB to 1,024 MB. This change applies only to systems with at least 4 GB of RAM.
The upgrade also removes several outdated options, including paytxfee, maxorphantx, and the old Tor network label. Developers say these cleanups simplify the software and reduce the chance of user mistakes.
Overall, Bitcoin node software v31 is positioned as an update to handle complex transaction chains more effectively and improve privacy. Developers are asking node operators, miners, and infrastructure providers to test the new version before its final release to help ensure seamless functionality.
Separately, JAN3 CEO Samson Mow dismissed concerns about quantum computer threats to Bitcoin. Mow said researchers are already ahead of quantum computing threats and have solutions to safeguard Bitcoin’s transactions.
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