Quick Breakdown
- Bitcoin Core 30.0 introduces encrypted node connections and expanded OP_RETURN limit.
- Data capacity increased from 80 bytes to 100,000 bytes.
- Community divided over non-financial use of Bitcoin’s blockchain.
The release of Bitcoin Core version 30.0 has reignited ideological divisions within the Bitcoin community, as developers introduce major updates to the network’s node architecture, privacy features, and data capabilities. The update marks a significant milestone for the world’s largest blockchain — but also a controversial one.
Major update expands data capacity and security
Among the most notable changes, Bitcoin Core 30.0 introduces optional encrypted connections between nodes, aimed at improving network privacy and security for operators. The update also raises the OP_RETURN data limit from 80 bytes to 100,000 bytes, enabling users to embed vastly larger amounts of non-financial data in transactions.
Developers say the move enhances the network’s potential for decentralized applications (dApps), metadata storage, and innovative use cases beyond payments. Additionally, the release notes confirm that versions 27.x and older have reached End of Life, meaning they will no longer receive updates or support.
While the new version also includes routine bug fixes, performance enhancements, and fee-rate adjustments, it’s the expansion of OP_RETURN that has drawn the most attention — and controversy.
Community divided over Bitcoin’s direction
The enlarged data capacity has split the community, with some welcoming the flexibility it brings, while others accuse developers of straying from Bitcoin’s original vision as a peer-to-peer electronic cash system. Critics warn that embedding large data volumes could clog the blockchain and undermine its financial use case.
Supporters, however, argue the update represents a necessary evolution. Ark Labs Ecosystem Lead Alex Bergeron wrote on X that he plans “to use all of the additional OP_RETURN space” to make Bitcoin “more like Ethereum, except better.”
I fully intend to use all of the additional OP_Return space and WILL use it to make Bitcoin more like Ethereum, except better.
Thank you for your attention to this matter.
— Alex B 👾 (@bergealex4) October 10, 2025
Beyond the technical debates, Bitcoin’s market narrative continues to evolve. On-chain analyst James Check said the asset’s fundamental strength has raised its new market floor to $110,000, signaling what he describes as a transition into a higher trading range for 2025.
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