Bitcoin Core added 135 contributors and 285,000 code changes in 2025 as audits find no critical flaws

In 2025, 135 developers contributed to Bitcoin Core, up from 100 in 2024, alongside 285,000 lines of code changed and a 1% rise in commits to 2,541. A Quarkslab audit completed in September reported no medium, high, or critical vulnerabilities, while Bitcoin’s price structure on the 4-hour chart has turned bullish above the $91k area.