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<p>This page summarizes significant changes to Langflow in each release.
For all changes, see the <a href="https://github.com/langflow-ai/langflow/releases/latest" target="_blank" rel="noopener noreferrer">Changelog</a>.</p>
<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>
<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>&quot;$LANGFLOW_SERVER_URL/api/v1/projects/download/$PROJECT_ID&quot; \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H &quot;accept: application/json&quot; \</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span> -H &quot;x-api-key: $LANGFLOW_API_KEY&quot;</span></div></div><br></code></div></div>
<p>To export flows from the visual editor, 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 Langflow 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&#x27;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&#x27;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>Highlights of this release include the following changes.
For all changes, see the <a href="https://github.com/langflow-ai/langflow/releases" target="_blank" rel="noopener noreferrer">Changelog</a>.</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="/api-keys-and-authentication">API keys and authentication</a>.</p>
</li>
<li>
<p>Centralized <strong>Language Model</strong> and <strong>Embedding Model</strong> components</p>
<p>The <a href="/components-models"><strong>Language Model</strong> component</a> and <a href="/components-embedding-models"><strong>Embedding Model</strong> component</a> are now core components for your LLM and embeddings flows. They support multiple models and model providers, and allow you to experiment with different models without swapping out single-provider components.
Find them in the visual editor in the <strong>Models</strong> category.</p>
<p>The single-provider components moved to the <a href="/components-bundle-components"><strong>Bundles</strong></a> section.
You can use them to replace the <strong>Language Model</strong> and <strong>Embedding Model</strong> core components, or connect them to the <strong>Agent</strong> component with the <strong>Custom</strong> provider option.</p>
</li>
<li>
<p>MCP server one-click installation</p>
<p>On your Langflow project&#x27;s <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">Use Langflow as an MCP server</a>.</p>
</li>
<li>
<p>MCP server management</p>
<p>You can now add, remove, and edit your MCP servers in the <strong>MCP Tools</strong> components and through your Langflow <strong>Settings</strong> page.
For more information, see <a href="/mcp-client">Use Langflow as an 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&#x27;s code snippets, providing ready-to-use templates for making requests in your preferred programming language.</p>
</li>
<li>
<p><strong>Tools</strong> components are redistributed</p>
<p>All components in the <strong>Tools</strong> category were moved to other component categories, such as <strong>Helpers</strong> and <a href="/components-bundle-components">bundles</a>, or marked as legacy.</p>
<p>The <a href="/mcp-client"><strong>MCP Tools</strong> component</a> is now under the <strong>Agents</strong> category.</p>
<p>Tools that performed the same function were combined into single components that support multiple providers, such as the <a href="/components-data#web-search"><strong>Web Search</strong> component</a> and the <a href="/components-data#news-search"><strong>News Search</strong> component</a>.</p>
<p>For more information, see <a href="/components-tools"><strong>Tools</strong> components</a>.</p>
</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>
<li>
<p>New integrations and bundles</p>
<ul>
<li><a href="/integrations-cleanlab"><strong>Cleanlab</strong> bundle</a></li>
</ul>
</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>Highlights of this release include the following changes.
For all changes, see the <a href="https://github.com/langflow-ai/langflow/releases" target="_blank" rel="noopener noreferrer">Changelog</a>.</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>
<li>Added the <strong>BigQuery</strong> component</li>
<li>Added the <strong>Twelve Labs</strong> bundle</li>
<li>Added the <strong>NVIDIA System-Assist</strong> component</li>
</ul>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="deprecations">Deprecations<a href="#deprecations" class="hash-link" aria-label="Direct link to Deprecations" title="Direct link to Deprecations">​</a></h3>
<ul>
<li>Deprecated the <strong>Combine Text</strong> 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>Highlights of this release include the following changes.
For all changes, see the <a href="https://github.com/langflow-ai/langflow/releases" target="_blank" rel="noopener noreferrer">Changelog</a>.</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 <strong>Breaking Changes</strong> feature to help update components without breaking flows after updating Langflow.</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>Highlights of this release include the following changes.
For all changes, see the <a href="https://github.com/langflow-ai/langflow/releases" target="_blank" rel="noopener noreferrer">Changelog</a>.</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 <strong>Folders</strong> to <strong>Projects</strong> in the visual editor.</li>
<li>The <code>/folders</code> endpoints now redirect to <code>/projects</code>.</li>
</ul>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="deprecations-1">Deprecations<a href="#deprecations-1" class="hash-link" aria-label="Direct link to Deprecations" title="Direct link to Deprecations">​</a></h3>
<ul>
<li>Deprecated the <strong>Gmail</strong>, <strong>Google Drive</strong>, and <strong>Google Search</strong> components.
For alternatives, see the <a href="/bundles-google"><strong>Google</strong> bundle</a>.</li>
</ul>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="earlier-releases">Earlier releases<a href="#earlier-releases" class="hash-link" aria-label="Direct link to Earlier releases" title="Direct link to Earlier releases">​</a></h2>
<p>See the <a href="https://github.com/langflow-ai/langflow/releases" target="_blank" rel="noopener noreferrer">Changelog</a>.</p></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></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="#deprecations" class="table-of-contents__link toc-highlight">Deprecations</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="#deprecations-1" class="table-of-contents__link toc-highlight">Deprecations</a></li></ul></li><li><a href="#earlier-releases" class="table-of-contents__link toc-highlight">Earlier releases</a></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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