The post Bitcoin opens 2026 with rising Core contributors – Why this matters appeared on BitcoinEthereumNews.com.

Bitcoin saw a healthy amount of developer activity, observed the Chief Security Officer of Casa. In a post on X, Jameson Lopp noted that 135 different people had contributed code to the Bitcoin Core in 2025. Source: Jameson Lopp This number had been 100 in 2024. The increase reflected that a cycle of innovation was underway and not just maintenance. Moreover, the Bitcoin Development Mailing List grew by 60% to prove this point. The past two years saw decreased mailing list messages. A resurgence in activity was encouraging, as it is an important means for proposing and debating protocol changes. The Bitcoin Core had also changed 285,000 lines of code, reported Lopp. There was a 1% increase in code commits year-on-year, reaching 2,541. The expanded contributor base came alongside the continued promise of support for the Bitcoin Core. The global investment management firm VanEck announced a pledge to donate 5% of the Bitcoin [BTC] ETF profits, if approved, to support the devs for the next ten years. Third-party security audit finds no critical vulnerabilities in Bitcoin In September, cybersecurity firm Quarkslab completed the first public, third-party audit of the Bitcoin Core codebase. A four-month assessment into the Bitcoin codebase was funded by the non-profit organisation, Brink, coordinated by the Open Source Technology Improvement Fund (OSTIF). The goal was to “actively search for vulnerabilities“, Brink revealed. Two low-severity issues were found, and 13 informational recommendations were provided, but no medium or high-severity or critical vulnerabilities were found. The report concluded, “No high-impact issues were found, but marginal gain was brought on existing fuzzing harnesses as well as new ones to cover untested scenarios like chain reorganization.” A bullish spark for Bitcoin to start the new year Source: BTC/USDT on TradingView The 4-hour chart of the leading crypto showed a bullish structure…

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Filed under: News - @ January 6, 2026 1:24 am