CoinVoice has learned that, according to TheBlock, Bitcoin Core development activity significantly increased in 2025, reversing a multi-year downward trend. Casa Chief Security Officer Jameson Lopp released annual data showing that Bitcoin Core mailing list traffic grew by 60% year-over-year, with 135 independent code contributors involved in development. The total code changes reached approximately 285,000 lines, reversing a continuous decline since 2018, when the number of contributors peaked at around 193.
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CoinVoice has learned that, according to TheBlock, Bitcoin Core development activity significantly increased in 2025, reversing a multi-year downward trend. Casa Chief Security Officer Jameson Lopp released annual data showing that Bitcoin Core mailing list traffic grew by 60% year-over-year, with 135 independent code contributors involved in development. The total code changes reached approximately 285,000 lines, reversing a continuous decline since 2018, when the number of contributors peaked at around 193.