Bitcoin Core

Armin Sabouri (left), one of the co-authors of the OP_CAT proposal; with Dan Gould, a Bitcoin developer; and co-author Ethan Heilman, in October at Chaincode Labs' Bitcoin Research Day, in New York. (Neha Narula)
Satoshi-Era Bitcoin Function 'OP_CAT' Dusted Off as Development Fervor Grows
Developers Ethan Heilman and Armin Sabouri view OP_CAT as a simple opcode that offers some of the general purpose functionality currently missing in Bitcoin
Armin Sabouri (left), one of the co-authors of the OP_CAT proposal; with Dan Gould, a Bitcoin developer; and co-author Ethan Heilman, in October at Chaincode Labs' Bitcoin Research Day, in New York. (Neha Narula)

Modified screenshot of Bitcoin Core maintainer Ava Chow's comment on GitHub, when she closed a controversial proposal from the developer Luke Dashjr. (GitHub, modified by CoinDesk)
Steward of Bitcoin Software Explains Why She Nixed an Acrimonious Code Debate
"All it was doing was generating noise," the Bitcoin Core maintainer Ava Chow says of Luke Dashjr's pull request, which would have severely curtailed the use of Ordinals inscr...
Modified screenshot of Bitcoin Core maintainer Ava Chow's comment on GitHub, when she closed a controversial proposal from the developer Luke Dashjr. (GitHub, modified by CoinDesk)

Image of some of Luke Dashjr's proposed code changes, from pull request #28408. (GitHub, modified by CoinDesk)
Bitcoin Developer's Proposal to Stop 'Spam' NFTs Gets Shut Down
Luke Dashjr's technical proposal sounded innocuous enough: to make the popular Bitcoin Core software "effective with newer datacarrying styles." In reality, the effort represe...
Image of some of Luke Dashjr's proposed code changes, from pull request #28408. (GitHub, modified by CoinDesk)

Coin jar (Josh Appel/Unsplash)
VanEck to Donate 5% of BTC ETF Profits to Bitcoin Core Developers
The company last year made a similar pledge to Ethereum developers with respect to its ether futures ETF.
Coin jar (Josh Appel/Unsplash)

Snippet of code pulled from Bitcoin Improvement Proposal 324, co-authored by Dhruv Mehta. (GitHub)
Bitcoin Core's 'v26.0' Upgrade Aims to Impede Eavesdropping, Tampering
The v26.0 upgrade contains experimental support for the v2 transport protocol as defined by Bitcoin Improvement Proposal 324 (BIP324).
Snippet of code pulled from Bitcoin Improvement Proposal 324, co-authored by Dhruv Mehta. (GitHub)

Screenshot of code from Milk Sad vulnerability (milksad.info)
Disappearance of $900K Puts Focus on Vintage Bitcoin Project Libbitcoin
The issue, dubbed “Milk Sad,” was discovered in late July by information security firm Distrust.
Screenshot of code from Milk Sad vulnerability (milksad.info)

Snippet of code pulled from Bitcoin Improvement Proposal 324, co-authored by Dhruv Mehta. (GitHub)
Bitcoin Core Developer Dhruvkaran Mehta Steps Away, Teases New Startup Idea
The developer known as @dhruv on Twitter and GitHub, formerly a Google software engineer and now a successful entrepreneur, is taking a break from working on Bitcoin for anoth...
Snippet of code pulled from Bitcoin Improvement Proposal 324, co-authored by Dhruv Mehta. (GitHub)

Andrew Chow (Advancing Bitcoin 2020)
Reviewing Code Is Mind-Numbing: Q&A With Bitcoin Maintainer Andrew Chow
He stumbled upon Bitcoin in high school while looking for ways to pay for his favorite video games. He now reviews and improves Bitcoin’s code for a living. Sometimes it's bor...
Andrew Chow (Advancing Bitcoin 2020)

(DALL-E/CoinDesk)
Proposed Bitcoin Vault Feature Could Thwart Malicious Hackers
The feature is still in draft form and would require a soft fork in order to be adopted into Bitcoin Core.
(DALL-E/CoinDesk)

Bitcoin Core developer Marco Falke (Twitter)
Bitcoin Core Developer Marco Falke Steps Down From Maintainer Role
Falke was Bitcoin Core’s most prolific contributor, with more than 2,000 commits over seven years.
Bitcoin Core developer Marco Falke (Twitter)