Bitcoin Core saw a resurgence in development activity in 2025. Casa's Chief Security Officer Jameson Lopp compiled data showing that the number of emails on the Bitcoin developer mailing list increased by about 60% year-over-year, with 135 different contributors submitting code to the Bitcoin Core codebase, up from around 112 in 2024. This marks the end of a multi-year decline since the peak in 2018. In 2025, Bitcoin Core completed its first publicly disclosed third-party security audit, conducted by Quarkslab and funded by Brink, with no critical vulnerabilities found during the audit. On the funding side, VanEck continued to allocate 5% of its spot Bitcoin ETF profits to support Brink's development grants. (The Block) https://www.(wublock123.com)/index.php?m=content&c=index&a=show&catid=6&id=54535