CoinDesk Podcast Network23 Jul 2025

BITCOIN SEASON 2: Bitcoin Isn’t Changing And That’s A Bad Thing

James O'Beirne discusses Bitcoin development challenges, the CTV soft fork controversy, and why protocol upgrades have stalled. He explains the community response to his developer letter and Bitcoin's ossification risks. You're listening to Bitcoin Season 2. Subscribe to the newsletter, trusted by over 7,000 Bitcoiners: https://newsletter.blockspacemedia.com Bitcoin developer James O’Beirne joins us to talk about the current state of Bitcoin development, the controversial CTV (OP_CheckTemplateVerify) soft fork proposal, and why he organized a letter signed by 66+ prominent Bitcoin developers requesting Bitcoin Core focus on protocol upgrades. We dive deep into Bitcoin's development culture, the post-SegWit era challenges, and the growing concern about Bitcoin's ossification. Subscribe to the newsletter! https://newsletter.blockspacemedia.com **Notes:** • 66 developers signed CTV support letter • 96% of Bitcoin value uses non-taproot outputs • 19% of global hashrate supports CTV proposal • 5+ years of CTV development and testing • 5 Bitcoin bounty offered for CTV bugs found • 16.5 years since Bitcoin's initial release Timestamps: 00:00 Start 01:55 Jame's work 08:33 History of BTC development 12:37 Culture & the block size war 16:34 Code change process 24:29 The CTV letter origin 33:53 Reception of the letter 38:33 Why is there resistance? 40:53 Alternative proposal 48:20 Upgrade Hooks 50:36 Future outlooks for changes 54:49 Reasons for optimism - 👋Bitcoin Season 2 is produced Blockspace Media, Bitcoin’s first B2B publication in Bitcoin. Follow us on Twitter and check out our newsletter for the best information in Bitcoin mining, Ordinals and tech! Enjoy the show? Check out our website and newsletter by clicking here. Questions or want to sponsor? hello@blockspace.media See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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