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<div class="key-points-section"><strong>Key Points:</strong>
 <ul>
  <li>Song expresses concerns over OP_Return changes.</li>
  <li>Bitcoin Knots sees increased adoption.</li>
  <li>Community debates potential long-term effects.</li>
 </ul>
</div>
<p>Bitcoin developer Jimmy Song has criticized the Bitcoin Core team's decision to remove the OP_Return data limit, labeling their approach as exhibiting a "fiat mentality."</p>
<h2 id="jimmy-song-s-criticism">Jimmy Song's Criticism</h2>
<p><strong>Bitcoin developer Jimmy Song</strong> has expressed strong opposition to the Bitcoin Core team's decision to remove the 80-byte limit on OP_Return data. Song argues that <strong>this change undermines Bitcoin's core principles</strong>. "You can argue whether that's something desirable or not, but saying you can't define it is a stalling tactic meant to avoid the real argument about actual impact — particularly, the long-term impact of this change."</p>
<blockquote class="twitter-tweet"><a href="https://twitter.com/jimmysong/status/1969502428178337889" rel="noopener noreferrer nofollow"></a>
</blockquote>
<p>The <strong>Bitcoin Core upgrade</strong>, planned in its 30th version, involves changing OP_Return handling. Song describes the developers' logic as a <strong>"fiat mentality,"</strong> criticizing deflections of community concerns.</p>
<h2 id="infrastructure-shifts">Infrastructure Shifts</h2>
<p>The immediate reaction shows a <strong>migration towards Bitcoin Knots,</strong> an alternative Bitcoin network with stricter data limits. Bitcoin Knots now comprises about <strong>20% of network nodes,</strong> indicating a clear infrastructure shift.</p>
<p>This shift has not significantly impacted the BTC price or overall cryptocurrency market stability. <strong>On-chain data shows</strong> no major liquidity changes linked to the OP_Return debate.</p>
<h2 id="historical-context-and-community-resilience">Historical Context and Community Resilience</h2>
<p>Nostalgic echoes of the <strong>2015–2017 block size wars</strong> resurface as the community debates the implications of OP_Return changes. Similar controversies could potentially incite further technological and social splits within the Bitcoin community.</p>
<p>Observers recall the <strong>Bitcoin Cash fork</strong> as historical precedent, questioning if OP_Return disputes could produce comparable impacts. Without imminent financial shifts or regulations mentioned, the focus stays on community resilience and infrastructural preference shifts.</p>
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Jimmy Song Criticizes Bitcoin Core Upgrade Decision

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