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<strong class="sidebar-title">Getting Started</strong><a href="intro-to-liquid.html" class="sidebar-link">Intro to Liquid</a><a href="setup.html" class="sidebar-link">Setup</a><a href="options.html" class="sidebar-link">Options</a><a href="render-file.html" class="sidebar-link">Render Files</a><a href="partials-and-layouts.html" class="sidebar-link">Includes and Layouts</a><a href="use-in-expressjs.html" class="sidebar-link">Use in Express.js</a><strong class="sidebar-title">Advanced</strong><a href="caching.html" class="sidebar-link">Caching</a><a href="escaping.html" class="sidebar-link">Escaping</a><a href="register-filters-tags.html" class="sidebar-link">Register Filters/Tags</a><a href="access-scope-in-filters.html" class="sidebar-link">Access Scope in Filters</a><a href="parse-parameters.html" class="sidebar-link">Parse Parameters</a><a href="render-tag-content.html" class="sidebar-link">Render Tag Content</a><a href="drops.html" class="sidebar-link">Liquid Drops</a><a href="sync-and-async.html" class="sidebar-link">Sync and Async</a><a href="whitespace-control.html" class="sidebar-link">Whitespace Control</a><a href="plugins.html" class="sidebar-link">Plugins</a><a href="operators.html" class="sidebar-link">Operators</a><a href="truthy-and-falsy.html" class="sidebar-link">Truthy and Falsy</a><a href="security-model.html" class="sidebar-link">Security Model</a><a href="static-analysis.html" class="sidebar-link">Static Analysis</a><strong class="sidebar-title">Miscellaneous</strong><a href="migrate-to-9.html" class="sidebar-link current">Migrate to LiquidJS 9</a><a href="changelog.html" class="sidebar-link">Changelog</a><a href="differences.html" class="sidebar-link">Differences with Shopify/liquid</a><a href="contribution-guidelines.html" class="sidebar-link">Contribution Guidelines</a>
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<h1 class="article-title" itemprop="name">Migrate to LiquidJS 9</h1>
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<a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/edit/master/docs/source/tutorials/migrate-to-9.md" class="article-edit-link" title="Improve this doc"><i class="icon-pencil"></i></a>
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<p>LiquidJS 9 has some fundamental improvements, including bugfixes, new features and performance improvements due to a higher target (see #137). There are also some breaking changes.</p>
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<h2 id="Features" class="article-heading"><a href="#Features" class="headerlink" title="Features"></a>Features<a class="article-anchor" href="#Features" aria-hidden="true"></a></h2><ul>
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<li>Sync rendering: renderSync, parseAndRenderSync, renderFileSync</li>
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<li>New utils: Expression</li>
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</ul>
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<h2 id="Fixes" class="article-heading"><a href="#Fixes" class="headerlink" title="Fixes"></a>Fixes<a class="article-anchor" href="#Fixes" aria-hidden="true"></a></h2><ul>
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<li>Rewrite boolean expression evaluation order, <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/130">#130</a>;</li>
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<li><code>break</code> and <code>continue</code> tags omitting output before them, <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/123">#123</a>;</li>
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<li>Fixes errors in React.js demo during yarn install, <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/145">#145</a>;</li>
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<li>Promise typed Drops are not always awaited.</li>
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</ul>
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<h2 id="Performance" class="article-heading"><a href="#Performance" class="headerlink" title="Performance"></a>Performance<a class="article-anchor" href="#Performance" aria-hidden="true"></a></h2><ul>
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<li>Performance Improvements due to targeting Node.js 8, see <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/issues/137">#137</a>;</li>
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<li>Memory footprint is reduced by 57.5%, see <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/pull/202">#202</a>;</li>
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<li>Render performance is improved by 100.3%, see <a target="_blank" rel="noopener external nofollow noreferrer" href="https://github.com/harttle/liquidjs/pull/205">#205</a>.</li>
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</ul>
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<h2 id="BREAKING-CHANGES" class="article-heading"><a href="#BREAKING-CHANGES" class="headerlink" title="BREAKING CHANGES"></a>BREAKING CHANGES<a class="article-anchor" href="#BREAKING-CHANGES" aria-hidden="true"></a></h2><ul>
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<li>LiquidJS no longer has a default export, use <code>import {Liquid} from 'liquidjs'</code> instead. The <code>window.Liquid</code> for the UMD bundle is also changed to <code>window.liquidjs.Liquid</code>;</li>
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<li>The duplicate static method <code>Liquid.evalValue</code> is removed, use the instance method <code>liquid.evalValue</code> instead;</li>
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<li>Shipped to Node.js 8, the CJS bundle (main entry in Node.js) no longer supports Node.js ≤ 6. ESM (dist/liquid.node.esm.js) and UMD (dist/liquid.browser.umd.js, dist/liquid.browser.min.js) bundles are not affected.</li>
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<time class="article-footer-updated" datetime="2026-08-01T10:16:11.138Z" itemprop="dateModified">Last updated: 2026-08-01</time>
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<a href="static-analysis.html" class="article-footer-prev" title="Static Analysis"><i class="icon-chevron-left"></i><span>Prev</span></a><a href="changelog.html" class="article-footer-next" title="Changelog"><span>Next</span><i class="icon-chevron-right"></i></a>
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