Bitcoin

<ul>
 <li>The latest Bitcoin Core v30.0 update has sparked debate due to the increase in OP_RETURN data limits, raising concerns among long-time developers.</li>
 <li>Bitcoin pioneer Nick Szabo advised against upgrading, while Adam Back clarified that OP_RETURN is an original Satoshi feature.</li>
 <li>The new release also introduces TRUC transaction support, signaling continued innovation in the Bitcoin network despite community disagreements.</li>
</ul>
<p>The <a href="https://crypto-economy.com/what-is-bitcoin/" rel="noopener noreferrer nofollow">Bitcoin</a> Core project recently released version 30.0 for testing, bringing several technical updates to the network. While the release introduces TRUC transaction support and other enhancements, one feature in particular has caught the attention of developers and users alike. The new version increases the “datacarriersize” to 100,000 bytes by default, effectively lifting the previous OP_RETURN limit of 80 bytes. This change allows for more data to be embedded directly in transactions, a move that has divided opinions within the Bitcoin community. Some users argue that the expansion could pave the way for innovative applications such as decentralized identity verification and more complex financial operations.</p>
<p><img src="https://academy-public.coinmarketcap.com/optimized-uploads/2273713a36974c17ba7342f5dcfce486.png"></p>
<h2 id="header-0">SATOSHI FEATURE SPARKS DIFFERING OPINIONS</h2>
<p>Nick Szabo, a respected figure in the crypto world, publicly advised against upgrading to Bitcoin Core v30, recommending the alternative Knots client instead. Szabo’s warning highlights cautious sentiment among some developers who fear potential risks in altering long-standing transaction limits. Adam Back, CEO of Blockstream, addressed the controversy by emphasizing that OP_RETURN is not a recent invention but a feature included by Satoshi Nakamoto over 15 years ago. Back stressed that the function has been part of <a href="https://crypto-economy.com/bitcoin-wavers-near-122000-as-fed-signals-trigger-renewed-volatility-fears/" rel="noopener noreferrer nofollow">Bitcoin’s</a> original design, underscoring its legitimacy despite differing opinions on its usage today. Analysts note that revisiting Satoshi’s original features may offer insights for scaling solutions and future protocol upgrades.</p>
<h2 id="header-1">COMMUNITY RESPONSES HIGHLIGHT TENSIONS</h2>
<p>The debate over the OP_RETURN expansion reflects broader questions about <a href="https://crypto-economy.com/arthur-hayes-suggests-trump-and-xi-are-amplifying-bitcoins-rise-beyond-historic-halving-effects/" rel="noopener noreferrer nofollow">Bitcoin’s</a> future scalability and data handling capabilities. Proponents of the update argue that increasing transaction data limits opens doors for innovative applications and smart contract-like functionality directly on Bitcoin’s blockchain. Critics, however, caution that larger transactions could affect network efficiency and block propagation times, potentially introducing unforeseen technical challenges. Developers and researchers are now closely monitoring the testnet results to better understand the implications of these changes before wider adoption occurs.</p>
<p><img src="https://academy-public.coinmarketcap.com/optimized-uploads/bc2d07f586c843489ef9c98eaa69d193.png"></p>
<p>As the <a href="https://coinmarketcap.com/currencies/bitcoin/" rel="noopener noreferrer nofollow">Bitcoin</a> ecosystem continues to grow, the discussion around v30.0 demonstrates a balance between maintaining network stability and embracing upgrades that enable more versatile use cases. The community remains watchful, navigating the tension between honoring Bitcoin’s original protocol and exploring enhancements that push its capabilities forward.</p>

Controversial Satoshi Feature Emerges as Bitcoin Market Faces Uncertainty

Table of Contents

CryptoEconomy

Other articles published on Oct 11, 2025

Join our free newsletter for daily crypto updates!