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<p>This page summarizes significant changes to Langflow in each release.
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For all changes, see the <a href="https://github.com/langflow-ai/langflow/releases/latest" target="_blank" rel="noopener noreferrer">Changelog</a>.</p>
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<p>Due to strict SemVer requirements, Langflow Desktop can have different patch versions than the core Langflow OSS Python package, but the major and minor versions are aligned.</p>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="prepare-to-upgrade">Prepare to upgrade<a href="#prepare-to-upgrade" class="hash-link" aria-label="Direct link to Prepare to upgrade" title="Direct link to Prepare to upgrade"></a></h2>
|
||
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>Whenever possible, the Langflow team recommends installing new Langflow versions in a new virtual environment or VM before upgrading your primary installation.
|
||
This allows you to <a href="/concepts-flows-import#import-a-flow">import flows</a> from your existing installation and test them in the new version without disrupting your existing installation.
|
||
In the event of breaking changes or bugs, your existing installation is preserved in a stable state.</p></div></div>
|
||
<p>To avoid the impact of potential breaking changes and test new versions, the Langflow team recommends the following upgrade process:</p>
|
||
<ol>
|
||
<li>
|
||
<p>Recommended: <a href="/api-projects#export-a-project">Export your projects</a> to create backups of your flows:</p>
|
||
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>curl -X GET \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>"$LANGFLOW_SERVER_URL/api/v1/projects/download/$PROJECT_ID" \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H "accept: application/json" \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H "x-api-key: $LANGFLOW_API_KEY"</span></div></div><br></code></div></div>
|
||
<p>To export flows from the Langflow UI, see <a href="/concepts-flows-import">Import and export flows</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>Install the new version:</p>
|
||
<ul>
|
||
<li><strong>Langflow OSS Python package</strong>: Install the new version in a new virtual environment. For instructions, see <a href="/get-started-installation#install-and-run-the-langflow-oss-python-package">Install and run the Langflow OSS Python package</a>.</li>
|
||
<li><strong>Langflow Docker image</strong>: Run the new image in a separate container.</li>
|
||
<li><strong>Langflow Desktop</strong>: To upgrade in place, open Langflow Desktop, and then click <strong>Upgrade Available</strong> in the header. If you want to isolate the new version, you must install Langflow Desktop on a separate physical or virtual machine, and then <a href="/concepts-flows-import">import your flows</a> to the new installation.</li>
|
||
</ul>
|
||
</li>
|
||
<li>
|
||
<p><a href="/concepts-flows-import">Import your flows</a> to test them in the new version, <a href="/concepts-components#component-versions">upgrading components</a> as needed.</p>
|
||
<p>When upgrading components, you can use the <strong>Create backup flow before updating</strong> option if you didn't previously export your flows.</p>
|
||
</li>
|
||
<li>
|
||
<p>If you installed the new version in isolation, upgrade your primary installation after testing the new version.</p>
|
||
<p>If you made changes to your flows in the isolated installation, you might want to export and import those flows back to your upgraded primary installation so you don't have to repeat the component upgrade process.</p>
|
||
</li>
|
||
</ol>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="150">1.5.0<a href="#150" class="hash-link" aria-label="Direct link to 1.5.0" title="Direct link to 1.5.0"></a></h2>
|
||
<p>The following updates are included in this version:</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="new-features-and-enhancements">New features and enhancements<a href="#new-features-and-enhancements" class="hash-link" aria-label="Direct link to New features and enhancements" title="Direct link to New features and enhancements"></a></h3>
|
||
<ul>
|
||
<li>
|
||
<p>Authentication changes</p>
|
||
<p>To enhance security and ensure proper authentication for automatic login features, most API endpoints now require authentication with a Langflow API key, regardless of the <code>AUTO_LOGIN</code> setting.
|
||
The only exceptions are the MCP endpoints <code>/v1/mcp</code>, <code>/v1/mcp-projects</code>, and <code>/v2/mcp</code>, which never require authentication.
|
||
For more information, see <a href="/configuration-api-keys">API keys</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>New Language Model and Embedding Model components</p>
|
||
<p>The <strong>Language Model</strong> and <strong>Embedding Model</strong> components have been promoted to be the main components for your LLM and embeddings flows. They support multiple models and model providers, and allow you to experiment without swapping out single-provider components.
|
||
The single-provider components are still available for your flows in the components sidebar under <a href="/components-bundle-components">Bundles</a>.
|
||
For more information, see the <a href="/components-models">Language model</a> and <a href="/components-embedding-models">Embedding model</a> components.</p>
|
||
</li>
|
||
<li>
|
||
<p>MCP one-click installation</p>
|
||
<p>In the <strong>MCP server</strong> page, click <strong>Auto install</strong> to install your Langflow MCP server to MCP clients with just one click.
|
||
The option to install with a JSON configuration file is available for macOS, Windows, and WSL.
|
||
For more information, see <a href="/mcp-server">MCP server</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>MCP server management</p>
|
||
<p>Add, remove, and edit your MCP servers in the <strong>MCP Tools</strong> and <strong>Settings</strong> page.
|
||
For more information, see <a href="/mcp-client">MCP client</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>Input schema replaces temporary overrides</p>
|
||
<p>The <strong>Input schema</strong> pane replaces the need to manage tweak values in the <strong>API access</strong> pane. When you enable a parameter in the <strong>Input schema</strong> pane, the parameter is automatically added to your flow's code snippets, providing ready-to-use templates for making requests in your preferred programming language.</p>
|
||
</li>
|
||
<li>
|
||
<p>Tools category is now legacy</p>
|
||
<p>All components in the <strong>Tools</strong> category are now <strong>Legacy</strong> or have moved to <a href="/components-bundle-components">Bundles</a>.</p>
|
||
<p>The <a href="/mcp-client">MCP Tools</a> component is available in the components sidebar under <strong>Agents</strong>.</p>
|
||
<p>Many of the <strong>Tools</strong> components performed the same functions, like web search and API requests, so we combined this functionality into single components:</p>
|
||
<ul>
|
||
<li>To replace legacy search components, use the <a href="/components-data#web-search">Web search</a> component.</li>
|
||
<li>To replace legacy news aggregation components, use the <a href="/components-data#news-search">News search</a> component.</li>
|
||
</ul>
|
||
</li>
|
||
<li>
|
||
<p>Stability improvements</p>
|
||
<p>General stability improvements and bug fixes for enhanced reliability.
|
||
See an issue? <a href="https://github.com/langflow-ai/langflow/issues" target="_blank" rel="noopener noreferrer">Raise it on GitHub</a>.</p>
|
||
</li>
|
||
</ul>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="new-integrations-and-bundles">New integrations and bundles<a href="#new-integrations-and-bundles" class="hash-link" aria-label="Direct link to New integrations and bundles" title="Direct link to New integrations and bundles"></a></h3>
|
||
<ul>
|
||
<li><a href="/integrations-cleanlab">Cleanlab integration</a></li>
|
||
</ul>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="142">1.4.2<a href="#142" class="hash-link" aria-label="Direct link to 1.4.2" title="Direct link to 1.4.2"></a></h2>
|
||
<p>The following updates are included in this version:</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="new-features-and-enhancements-1">New features and enhancements<a href="#new-features-and-enhancements-1" class="hash-link" aria-label="Direct link to New features and enhancements" title="Direct link to New features and enhancements"></a></h3>
|
||
<ul>
|
||
<li>Enhanced file and flow management system with improved bulk capabilities.</li>
|
||
</ul>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="new-integrations-and-bundles-1">New integrations and bundles<a href="#new-integrations-and-bundles-1" class="hash-link" aria-label="Direct link to New integrations and bundles" title="Direct link to New integrations and bundles"></a></h3>
|
||
<ul>
|
||
<li>BigQuery component for connecting to BQ datasets.</li>
|
||
<li>Twelve Labs integration bundle.</li>
|
||
<li>NVIDIA system assistant component.</li>
|
||
</ul>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="deprecated-features">Deprecated features<a href="#deprecated-features" class="hash-link" aria-label="Direct link to Deprecated features" title="Direct link to Deprecated features"></a></h3>
|
||
<ul>
|
||
<li>Deprecated the Combine text component.</li>
|
||
</ul>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="141">1.4.1<a href="#141" class="hash-link" aria-label="Direct link to 1.4.1" title="Direct link to 1.4.1"></a></h2>
|
||
<p>The following updates are included in this version:</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="new-features-and-enhancements-2">New features and enhancements<a href="#new-features-and-enhancements-2" class="hash-link" aria-label="Direct link to New features and enhancements" title="Direct link to New features and enhancements"></a></h3>
|
||
<ul>
|
||
<li>Added an enhanced "Breaking Changes" feature to help update components during version updates without breaking flows.</li>
|
||
</ul>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="140">1.4.0<a href="#140" class="hash-link" aria-label="Direct link to 1.4.0" title="Direct link to 1.4.0"></a></h2>
|
||
<p>The following updates are included in this version:</p>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="new-features-and-enhancements-3">New features and enhancements<a href="#new-features-and-enhancements-3" class="hash-link" aria-label="Direct link to New features and enhancements" title="Direct link to New features and enhancements"></a></h3>
|
||
<ul>
|
||
<li>Introduced MCP server functionality to serve Langflow tools to MCP-compatible clients.</li>
|
||
<li>Renamed "Folders" to "Projects". The <code>/folders</code> endpoints now redirect to <code>/projects</code>.</li>
|
||
</ul>
|
||
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="deprecated-features-1">Deprecated features<a href="#deprecated-features-1" class="hash-link" aria-label="Direct link to Deprecated features" title="Direct link to Deprecated features"></a></h3>
|
||
<ul>
|
||
<li>Deprecated the Google Gmail, Drive, and Search components.</li>
|
||
</ul></div></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/contributing-bundles"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Contribute bundles</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/troubleshoot"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Troubleshoot</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#prepare-to-upgrade" class="table-of-contents__link toc-highlight">Prepare to upgrade</a></li><li><a href="#150" class="table-of-contents__link toc-highlight">1.5.0</a><ul><li><a href="#new-features-and-enhancements" class="table-of-contents__link toc-highlight">New features and enhancements</a></li><li><a href="#new-integrations-and-bundles" class="table-of-contents__link toc-highlight">New integrations and bundles</a></li></ul></li><li><a href="#142" class="table-of-contents__link toc-highlight">1.4.2</a><ul><li><a href="#new-features-and-enhancements-1" class="table-of-contents__link toc-highlight">New features and enhancements</a></li><li><a href="#new-integrations-and-bundles-1" class="table-of-contents__link toc-highlight">New integrations and bundles</a></li><li><a href="#deprecated-features" class="table-of-contents__link toc-highlight">Deprecated features</a></li></ul></li><li><a href="#141" class="table-of-contents__link toc-highlight">1.4.1</a><ul><li><a href="#new-features-and-enhancements-2" class="table-of-contents__link toc-highlight">New features and enhancements</a></li></ul></li><li><a href="#140" class="table-of-contents__link toc-highlight">1.4.0</a><ul><li><a href="#new-features-and-enhancements-3" class="table-of-contents__link toc-highlight">New features and enhancements</a></li><li><a href="#deprecated-features-1" class="table-of-contents__link toc-highlight">Deprecated features</a></li></ul></li></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class="footer__title"></div><ul class="footer__items clean-list"><li class="footer__item"><div class="footer-links">
|
||
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