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    <id>https://dev.rootstock.io/es/changelog/</id>
    <title>Rootstock Developers Portal Blog</title>
    <updated>2025-07-11T00:00:00.000Z</updated>
    <generator>https://github.com/jpmonette/feed</generator>
    <link rel="alternate" href="https://dev.rootstock.io/es/changelog/"/>
    <subtitle>Rootstock Developers Portal Blog</subtitle>
    <icon>https://dev.rootstock.io/es/img/favicon.png</icon>
    <entry>
        <title type="html"><![CDATA[Introducing Lovell 7.2.0]]></title>
        <id>https://dev.rootstock.io/es/changelog/2025/07/11/introducing-lovell-7-2-0/</id>
        <link href="https://dev.rootstock.io/es/changelog/2025/07/11/introducing-lovell-7-2-0/"/>
        <updated>2025-07-11T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2025/07/11/introducing-lovell-7-2-0/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The latest version of the <a href="https://github.com/rsksmart/rskj/releases/tag/LOVELL-7.2.0" target="_blank" rel="noopener noreferrer">RSKj client - Lovell 7.2.0</a> includes improvements to Ethereum compatibility, specifically in how the RSKj node handles the logIndex field, which indicates the position of a log entry within a transaction receipt’s list of logs. It also introduces the state override feature, enabling developers to simulate transactions with custom account code, storage, or balances during an eth_call, without altering the actual blockchain state.</p>
<div class="theme-admonition theme-admonition-tip admonition_WFEd alert alert--tip"><div class="admonitionHeading_lLiD"><span class="admonitionIcon_y8oN"><svg width="20" height="20" viewBox="0 0 20 20" fill="none"><path d="M10 17.98c-.42 0-.78-.15-1.09-.44-.3-.29-.47-.64-.5-1.07h3.18c-.03.43-.2.78-.5 1.07-.3.3-.67.44-1.09.44Zm-3.12-2.66v-1.25h6.25v1.25H6.88Zm.12-2.4a6.06 6.06 0 0 1-2.07-2.13 5.61 5.61 0 0 1-.76-2.87c0-1.63.56-3 1.7-4.14A5.63 5.63 0 0 1 10 2.08c1.62 0 3 .57 4.13 1.7a5.63 5.63 0 0 1 1.7 4.14c0 1.04-.25 2-.76 2.87-.5.87-1.2 1.58-2.07 2.13H7Zm.38-1.25h5.25a4.62 4.62 0 0 0 1.95-3.75c0-1.28-.44-2.36-1.33-3.25A4.42 4.42 0 0 0 10 3.33c-1.28 0-2.36.45-3.25 1.34a4.42 4.42 0 0 0-1.33 3.25 4.49 4.49 0 0 0 1.96 3.75Z" fill="currentColor"></path></svg></span>Tip</div><div class="admonitionContent_rZj0"><p>⚠️ Although this upgrade is optional, we strongly recommend updating your node to take advantage of the latest performance and security improvements.</p></div></div>
<h2 class="anchor anchorWithStickyNavbar_LWe7" id="what-changes-are-included-in-lovell-720">What changes are included in Lovell 7.2.0?<a href="https://dev.rootstock.io/es/changelog/2025/07/11/introducing-lovell-7-2-0/#what-changes-are-included-in-lovell-720" class="hash-link" aria-label="Enlace directo a What changes are included in Lovell 7.2.0?" title="Enlace directo a What changes are included in Lovell 7.2.0?">​</a></h2>
<p>Here’s a summary of the most notable changes in this version:</p>
<ul>
<li><strong>LogIndex compatibility enhancement:</strong> Aligned logIndex handling with Ethereum clients by making it block-relative.</li>
<li><strong>State override feature:</strong> introduced the state override feature, enabling developers to simulate transactions with custom account code, storage, or balances during an eth_call, without altering the actual blockchain state.</li>
</ul>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="lovell" term="lovell"/>
    </entry>
    <entry>
        <title type="html"><![CDATA[Introducing Lovell 7.1.0]]></title>
        <id>https://dev.rootstock.io/es/changelog/2025/05/21/introducing-lovell-7-1-0/</id>
        <link href="https://dev.rootstock.io/es/changelog/2025/05/21/introducing-lovell-7-1-0/"/>
        <updated>2025-05-21T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2025/05/21/introducing-lovell-7-1-0/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The latest version of the <a href="https://github.com/rsksmart/rskj/releases/tag/LOVELL-7.1.0" target="_blank" rel="noopener noreferrer">RSKj client - Lovell 7.1.0</a> introduces several enhancements, including the experimental Snap Synchronization mode, updates to the Fiat Stable MinGasPrice feature, and improvements to JSON-RPC API compatibility.</p>
<div class="theme-admonition theme-admonition-tip admonition_WFEd alert alert--tip"><div class="admonitionHeading_lLiD"><span class="admonitionIcon_y8oN"><svg width="20" height="20" viewBox="0 0 20 20" fill="none"><path d="M10 17.98c-.42 0-.78-.15-1.09-.44-.3-.29-.47-.64-.5-1.07h3.18c-.03.43-.2.78-.5 1.07-.3.3-.67.44-1.09.44Zm-3.12-2.66v-1.25h6.25v1.25H6.88Zm.12-2.4a6.06 6.06 0 0 1-2.07-2.13 5.61 5.61 0 0 1-.76-2.87c0-1.63.56-3 1.7-4.14A5.63 5.63 0 0 1 10 2.08c1.62 0 3 .57 4.13 1.7a5.63 5.63 0 0 1 1.7 4.14c0 1.04-.25 2-.76 2.87-.5.87-1.2 1.58-2.07 2.13H7Zm.38-1.25h5.25a4.62 4.62 0 0 0 1.95-3.75c0-1.28-.44-2.36-1.33-3.25A4.42 4.42 0 0 0 10 3.33c-1.28 0-2.36.45-3.25 1.34a4.42 4.42 0 0 0-1.33 3.25 4.49 4.49 0 0 0 1.96 3.75Z" fill="currentColor"></path></svg></span>Tip</div><div class="admonitionContent_rZj0"><p>⚠️ Although this upgrade is optional, we strongly recommend updating your node to take advantage of the latest performance and security improvements.</p></div></div>
<h2 class="anchor anchorWithStickyNavbar_LWe7" id="what-changes-are-included-in-lovell-710">What changes are included in Lovell 7.1.0?<a href="https://dev.rootstock.io/es/changelog/2025/05/21/introducing-lovell-7-1-0/#what-changes-are-included-in-lovell-710" class="hash-link" aria-label="Enlace directo a What changes are included in Lovell 7.1.0?" title="Enlace directo a What changes are included in Lovell 7.1.0?">​</a></h2>
<ul>
<li>[Experimental] Introduced SnapSync, a new fast synchronization mode designed to accelerate node bootstrapping.</li>
<li>Enhanced Fiat Stable MinGasPrice — added support for defining a valid minimum and maximum gas price range.</li>
<li>Improved upgrade awareness — added a warning message when a disabled network upgrade is detected.</li>
<li>JSON-RPC compatibility — added the <code>mixHash</code> and <code>nonce</code> fields to the block DTO, defaulting to zero for compatibility with Ethereum-based tools.</li>
<li>RLP validation enhancement — <code>RLP.getNextElementIndex</code> now throws an exception if an invalid pos value is provided.</li>
</ul>
<blockquote>
<p>Features marked as <strong>[Experimental]</strong> are disabled by default. These features require further validation or security reviews and may be changed or removed in future releases. If you’re unsure about their implications, we recommend leaving them disabled. See the <a href="https://github.com/rsksmart/rskj/compare/LOVELL-7.0.0...LOVELL-7.1.0" target="_blank" rel="noopener noreferrer">full changelog</a>.</p>
</blockquote>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="lovell" term="lovell"/>
    </entry>
    <entry>
        <title type="html"><![CDATA[Introducing Lovell 7.0.0]]></title>
        <id>https://dev.rootstock.io/es/changelog/2025/02/25/introducing-lovell-7-0-0/</id>
        <link href="https://dev.rootstock.io/es/changelog/2025/02/25/introducing-lovell-7-0-0/"/>
        <updated>2025-02-25T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2025/02/25/introducing-lovell-7-0-0/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The Rootstock community has approved the Lovell network upgrade, which includes consensus changes. Lovell will activate on Mainnet at block <code>7,338,024</code> by 12th March, 2025. Update your RSKj nodes to the latest version, available on the <a href="https://blog.rootstock.io/noticia/introducing-lovell-7-0-0/" target="_blank" rel="noopener noreferrer">RSKj GitHub repository</a>.</p>
<h2 class="anchor anchorWithStickyNavbar_LWe7" id="what-changes-are-included-in-lovell-700">What changes are included in Lovell 7.0.0?<a href="https://dev.rootstock.io/es/changelog/2025/02/25/introducing-lovell-7-0-0/#what-changes-are-included-in-lovell-700" class="hash-link" aria-label="Enlace directo a What changes are included in Lovell 7.0.0?" title="Enlace directo a What changes are included in Lovell 7.0.0?">​</a></h2>
<p>The consensus changes included in this version are:</p>
<ul>
<li>PowPeg Spendability Validation Protocol (RSKIP-419)</li>
<li>Express the amount value in wei for peg-out-related events (RSKIP-427)</li>
<li>New pegout creation event including UTXO outpoint values (RSKIP-428)</li>
<li>Limit the maximum size of initcode and apply extra gas cost for every 32-byte chunk of initcode (RSKIP-438)</li>
<li>and lots more...</li>
</ul>
<blockquote>
<p>Since consensus rules have changed, this release is incompatible with previous versions. If you are running earlier versions of the Rootstock client node and adhering to these changes, you must update to this new version. The Mainnet network upgrade will happen at block number 7,338,024. The Testnet network upgrade will happen at block number 6,110,487. If you are already running an RSKj node using a Docker image, please follow the instructions on the <a href="https://github.com/rsksmart/rskj/releases" target="_blank" rel="noopener noreferrer">releases page</a>. Note that this upgrade is MANDATORY.</p>
</blockquote>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="lovell" term="lovell"/>
    </entry>
    <entry>
        <title type="html"><![CDATA[Introducing Arrowhead 6.5.0]]></title>
        <id>https://dev.rootstock.io/es/changelog/2024/12/06/introducing-arrowhead-6.5.0/</id>
        <link href="https://dev.rootstock.io/es/changelog/2024/12/06/introducing-arrowhead-6.5.0/"/>
        <updated>2024-12-06T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2024/12/06/introducing-arrowhead-6.5.0/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The Rootstock community is pleased to announce the release of the latest version of the RSKj client, which is now available in the <a href="https://github.com/rsksmart/rskj/releases/tag/ARROWHEAD-6.5.0" target="_blank" rel="noopener noreferrer">RSKj GitHub repository</a>. This update features new debugging methods and other improvements to the JSON-RPC interface, designed to optimize the developer experience.</p>
<blockquote>
<p>Note that this upgrade is optional, however it is strongly recommended that users update their nodes to the latest version to benefit from enhanced performance and security.</p>
</blockquote>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="arrowhead" term="arrowhead"/>
    </entry>
    <entry>
        <title type="html"><![CDATA[Introducing Arrowhead 6.4.0]]></title>
        <id>https://dev.rootstock.io/es/changelog/2024/11/05/introducing-arrowhead-6.4.0/</id>
        <link href="https://dev.rootstock.io/es/changelog/2024/11/05/introducing-arrowhead-6.4.0/"/>
        <updated>2024-11-05T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2024/11/05/introducing-arrowhead-6.4.0/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The Rootstock community is pleased to announce the release of the latest version of the RSKj client, which is now available in the <a href="https://github.com/rsksmart/rskj/releases/tag/ARROWHEAD-6.4.0" target="_blank" rel="noopener noreferrer">RSKj GitHub repository</a>. This update introduces the <strong>fiat-stable minimum gas price feature</strong> (disabled by default), enabling mining pools to automatically adjust their minimum gas price configuration based on the price of Bitcoin. Additionally, it includes JSON-RPC interface improvements and dependency upgrades.</p>
<blockquote>
<p>Note that this upgrade is optional, however it is strongly recommended that users update their nodes to the latest version to benefit from enhanced performance and security.</p>
</blockquote>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="arrowhead" term="arrowhead"/>
    </entry>
    <entry>
        <title type="html"><![CDATA[Introducing Arrowhead 6.3.1: What You Need To Know About Rootstock’s Upcoming Patch Network Upgrade]]></title>
        <id>https://dev.rootstock.io/es/changelog/2024/07/10/introducing-arrowhead-6-3-1/</id>
        <link href="https://dev.rootstock.io/es/changelog/2024/07/10/introducing-arrowhead-6-3-1/"/>
        <updated>2024-07-10T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2024/07/10/introducing-arrowhead-6-3-1/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The Rootstock network will undergo a patch network upgrade on block 6,549,300. This mandatory upgrade fixes the PowPeg outage reported on June 24th; users who adhere to these changes must update their nodes to the latest version</p>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="arrowhead" term="arrowhead"/>
    </entry>
    <entry>
        <title type="html"><![CDATA[Introducing Arrowhead 6.3.0]]></title>
        <id>https://dev.rootstock.io/es/changelog/2024/07/04/introducing-arrowhead-6-3-0/</id>
        <link href="https://dev.rootstock.io/es/changelog/2024/07/04/introducing-arrowhead-6-3-0/"/>
        <updated>2024-07-04T00:00:00.000Z</updated>
        <summary type="html"><![CDATA[Summary]]></summary>
        <content type="html"><![CDATA[<h2 class="anchor anchorWithStickyNavbar_LWe7" id="summary">Summary<a href="https://dev.rootstock.io/es/changelog/2024/07/04/introducing-arrowhead-6-3-0/#summary" class="hash-link" aria-label="Enlace directo a Summary" title="Enlace directo a Summary">​</a></h2>
<p>The Rootstock community is pleased to announce the release of the latest version of the RSKj client, which is now available in the <a href="https://github.com/rsksmart/rskj/releases/tag/ARROWHEAD-6.3.0" target="_blank" rel="noopener noreferrer">RSKj GitHub repository</a>. This update mainly focuses on improving Ethereum compatibility at the JSON-RPC interface and enhancing the node’s performance.</p>]]></content>
        <author>
            <name>Rootstock</name>
        </author>
        <category label="release" term="release"/>
        <category label="arrowhead" term="arrowhead"/>
    </entry>
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