Bitcoin Mixing Security Improvement – Bitcoin Magazine: Bitcoin News, Articles, Charts, and Guides

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The Bitcoin Optech newsletter provides readers with a top-level summary of the most important technical news happening in Bitcoin, along with resources that help them learn more. To help our readers stay up-to-date with Bitcoin, we’re republishing the latest issue of this newsletter below. Remember to subscribe to receive this content straight to your inbox.

This week’s newsletter follows up on a previous description about fidelity bonds in JoinMarket and includes our regular sections with the summary of a Bitcoin Core PR Review Club meeting, suggestions for preparing for taproot, announcements of releases and release candidates, and descriptions of notable changes to popular infrastructure projects.

News

Bitcoin Core PR Review Club

In this monthly section, we summarize a recent Bitcoin Core PR Review Club meeting, highlighting some of the important questions and answers. Click on a question below to see a summary of the answer from the meeting.

Prefer to use txindex if available for GetTransaction is a PR by Jameson Lopp which improves the performance of GetTransaction (and, by extension, the getrawtransaction RPC for users) by utilizing the transaction index (txindex) when possible. This change fixes an unexpected performance loss in which a call to getrawtransaction on a txindex-enabled node is significantly slower when called with the hash of the block that includes the transaction. The review club evaluated the cause of this performance issue by comparing the steps to retrieve a transaction with and without txindex.



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