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<!doctype html> <html class="writer-html5" lang="en" data-content_root="../"> <head> <base href="https://firefox-source-docs.mozilla.org/update-infrastructure/index.html"> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Mozilla Update Infrastructure — Firefox Source Docs documentation</title> <link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=fa44fd50"> <link rel="stylesheet" type="text/css" href="../_static/css/theme.css?v=19f00094"> <link rel="stylesheet" type="text/css" href="../_static/graphviz.css?v=fd3f3429"> <link rel="stylesheet" type="text/css" href="../_static/copybutton.css?v=76b2166b"> <link rel="stylesheet" type="text/css" href="../_static/custom_theme.css?v=a7d3e023"> <link rel="stylesheet" type="text/css" href="../_static/design-style.1e8bd061cd6da7fc9cf755528e8ffc24.min.css?v=0a3b3ea7"> <link rel="shortcut icon" 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class="wy-side-nav-search"><a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB" class="icon icon-home"> Firefox Source Docs <img src="../_static/firefox-wordmark.svg" class="logo" alt="Logo"> </a> <div> <h3>Quick search</h3> <script> (function () { var cx = "dd12886298f75dbef"; var gcse = document.createElement("script"); gcse.async = true; gcse.src = "https://cse.google.com/cse.js?cx=" + cx; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(gcse, s); })(); </script><gcse:search></gcse:search> </div> </div> <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu"> <p class="caption" role="heading"><span class="caption-text">Overview</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/glossary/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">A Glossary of Common Terms</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/overview/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">A Quick Guide to Mozilla Applications</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Getting Started</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/setup/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Getting Set Up To Work On The Firefox Codebase</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Working On Firefox</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/contributing/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Working on Firefox</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/bug-mgmt/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Bug Handling</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Firefox User Guide</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/devtools-user/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox DevTools User Docs</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Source Code Documentation</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mots/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Governance</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/browser/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox Front-end</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/dom/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">DOM</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/editor/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Editor</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/layout/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Style system (CSS) & Layout</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/gfx/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Graphics</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/ipc/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Processes, Threads and IPC</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/devtools/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox DevTools Contributor Docs</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/toolkit/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Toolkit</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/js/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">SpiderMonkey</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mobile/android/geckoview/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">GeckoView</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mobile/android/fenix/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Fenix</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mobile/android/focus-android/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Focus for Android</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/dom/bindings/webidl/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">WebIDL</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/modules/libpref/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">libpref</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/networking/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Networking</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/remote/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Remote Protocols</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/services/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Services</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/uriloader/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">File Handling</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/widget/cocoa/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox on macOS</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/widget/windows/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox on Windows</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/toolkit/components/ml/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox AI Platform</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/accessible/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Accessibility</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/code-quality/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Code quality</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/writing-rust-code/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Writing Rust Code</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/rust-components/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Rust Components</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/profiler/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Gecko Profiler</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/performance/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Performance</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/storage/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Database bindings (SQLite, KV, …)</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/xpcom/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">XPCOM</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/nspr/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">NSPR</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/security/nss/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Network Security Services (NSS)</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/content-security/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Web Security Checks in Gecko</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">The Firefox Build System</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mach/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Mach</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/try/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Pushing to Try</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/build/buildsystem/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Build System</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/taskcluster/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox CI and Taskgraph</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/moztreedocs/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Managing Documentation</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mozbuild/vendor/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Vendoring Third Party Components</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Testing & Test Infrastructure</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/automated-testing/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Automated Testing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/treeherder-try/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Understanding Treeherder Results</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/sheriffed-intermittents/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Sheriffed intermittent failures</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/tests-for-new-config/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Turning on Firefox tests for a new configuration</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/intermittent/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Avoiding intermittent tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/testing-policy/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Testing Policy</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/ci-configs/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Configuration Changes</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/browser-chrome/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Browser chrome mochitests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/chrome-tests/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Chrome Tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/marionette/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Marionette</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/geckodriver/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">geckodriver</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/test-verification/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Test Verification</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/webrender/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">WebRender Tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/mochitest-plain/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Mochitest</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/xpcshell/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">XPCShell tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/tps/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">TPS</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/web-platform/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">web-platform-tests</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/gtest/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">GTest</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/fuzzing/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Fuzzing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/sanitizer/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Sanitizer</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing/perfdocs/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Performance Testing</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/tools/code-coverage/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Code coverage</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/testing-rust-code/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Testing & Debugging Rust Code</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Releases & Updates</span></p> <ul class="current"> <li class="toctree-l1 current"><a class="current reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#">Mozilla Update Infrastructure</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#watershed-updates">Watershed Updates</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#desupport-updates">Desupport Updates</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Localization & Internationalization</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/intl/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Internationalization</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/l10n/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Localization</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Firefox and Python</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/mozbase/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">mozbase</a></li> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/python/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Using third-party Python packages</a></li> </ul> <p class="caption" role="heading"><span class="caption-text">Metrics Collected in Firefox</span></p> <ul> <li class="toctree-l1"><a class="reference internal" href="https://firefox--source--docs-mozilla-org.translate.goog/metrics/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Metrics</a></li> </ul> </div> </div> </nav> <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> <nav class="wy-nav-top" aria-label="Mobile navigation menu"><i data-toggle="wy-nav-top" class="fa fa-bars"></i> <a href="https://firefox--source--docs-mozilla-org.translate.goog/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB">Firefox Source Docs</a> </nav> <div class="wy-nav-content"> <div class="rst-content"> <div role="navigation" aria-label="Page navigation"> <ul class="wy-breadcrumbs"> <li><a 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class="document" itemscope itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <section id="mozilla-update-infrastructure"> <h1>Mozilla Update Infrastructure<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#mozilla-update-infrastructure" title="Link to this heading">¶</a></h1> <p>Firefox, Thunderbird, and Mozilla VPN updates rely on <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://github.com/mozilla-releng/balrog">backend service known as Balrog</a>. Periodically, these applications check for updates by pinging an URL<a class="footnote-reference brackets" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#id3" id="id1" role="doc-noteref"><span class="fn-bracket">[</span>1<span class="fn-bracket">]</span></a> which contains information about both the application running, and details of the system it is running on. If Balrog finds an update based on the provided information, it returns a simple XML response with a link to the update file, and some metadata about it.</p> </section> <section id="watershed-updates"> <h1>Watershed Updates<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#watershed-updates" title="Link to this heading">¶</a></h1> <p>Most of the time, an update will take an application directly from whatever version it is currently running to the latest version of that application. This is greatly preferred, both to save time, bandwidth, reduce restarts, and increase security by ensuring we get to the latest version of something as quickly as possible. Unfortunately, sometimes we must route through an intermediate version first, typically the version that is currently running does not provide Balrog with enough information to accurately serve a correct update to the latest version. These are colloquially known as “watershed” updates. (This name comes from the fact that these updates change something about the update process itself, making them a kind of “watershed moment” for updates.)</p> <p>At the time of writing (July, 2024), we currently have the following watershed updates in place for Firefox’s release channel:</p> <ul class="simple"> <li><p>12.0, all platforms. In this release <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D583671">we added support for distinguishing the running and supported architectures in macOS builds in the update URL</a>.</p></li> <li><p>43.0.1, Windows only. This release was <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1234277">preparation for desupporting SHA-1 hashes in our Windows builds</a>.</p></li> <li><p>45.0.2, Linux only. We added support for <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1227023">sending the GTK 3 version to the update URL</a>.</p></li> <li><p>47.0.2, Windows only. We <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1271761">added CPU instruction set information to the update URL</a> to later allow SSE1 to be deprecated.</p></li> <li><p>56.0, Windows only. We added support for <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1402376">sending information about the JAWS accessibility application to the update URL</a> to avoid updating people on crashy versions of it. Additionally, we <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D641212">added support for LZMA compression to the updater</a> and <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1324498">swapped to new MAR signing keys</a>.</p></li> <li><p>57.0.4<a class="footnote-reference brackets" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#id4" id="id2" role="doc-noteref"><span class="fn-bracket">[</span>2<span class="fn-bracket">]</span></a>, Linux & Mac only. We <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D641212">added support for LZMA compression to the updater</a> and <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1324498">swapped to new MAR signing keys</a>. (Note: Windows was not required here because they picked up this change in the above 56.0 watershed.)</p></li> <li><p>72.0.2, all platforms. This is a required version due to a <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1615382">necessary two-step password database migration</a>.</p></li> <li><p>109.0.1, macOS only. This updates the channel-prefs.js file (normally excluded from updates) due to <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1804303">signature issues</a>.</p></li> <li><p>127.0, Windows only. The issuer for our code-signing certificate changed, <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1894689">requiring an updated Mozilla Maintenance Service</a>.</p></li> </ul> </section> <section id="desupport-updates"> <h1>Desupport Updates<a class="headerlink" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#desupport-updates" title="Link to this heading">¶</a></h1> <p>From time to time we stop supporting a platform, hardware or library that we depend on. When we do this, we must ensure we don’t update affected users to a version that they can no longer run. This can take two forms:</p> <ul class="simple"> <li><p>In the distant past, we would simply stop serving updates altogether, leaving users on their current version.</p></li> <li><p>More recently, we will first move users to our <code class="docutils literal notranslate"><span class="pre">esr</span></code> channel - generally giving them another year of support before ending updates altogether.</p></li> </ul> <p>Below is a list of desupports and moves to <code class="docutils literal notranslate"><span class="pre">esr</span></code> that we’ve done on the Firefox release channel:</p> <ul class="simple"> <li><p>(Ancient, desupported at various old versions): Darwin 6, Darwin 7, Darwin 8, Darwin 9, Windows_95, Windows_98, Windows_NT 4, Windows_NT 5.0, Windows_NT 5.1.0, Windows_NT 5.1.1, GTK 2.0., GTK 2.1., GTK 2.2., GTK 2.3., GTK 2.4., GTK 2.5., GTK 2.6., GTK 2.7., GTK 2.8., GTK 2.9., GTK 2.10., GTK 2.11., GTK 2.12., GTK 2.13., GTK 2.14., GTK 2.15., GTK 2.16., GTK 2.17., PPC Architecture</p></li> <li><p><46.0: <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1270358">Desupported GTK <3.4</a></p></li> <li><p><49.0: Desupported <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1275607">Darwin 10, 11, and 12</a> (macOS 10.6, 10.7, 10.8), <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1284901">SSE and MMX instruction sets</a></p></li> <li><p><52.0: <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1318922">Moved Windows XP, Server 2003, and Vista users to esr52</a></p></li> <li><p><53.0: <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1325584">Desupported 32-bit macOS hardware</a></p></li> <li><p><77.0: <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1639199">Moved Darwin 13, 14, and 15</a> (macOS 10.9, 10.10, and 10.11) to esr78</p></li> <li><p><116.0: <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1836375">Moved Darwin 16, 17, and 18</a> (macOS 10.12, 10.13, and 10.14) to esr115</p></li> <li><p><116.0: <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://bugzilla.mozilla.org/show_bug.cgi?id%3D1594270">Moved Windows 7, 8, and 8.1</a> to esr115</p></li> </ul> <hr class="footnotes docutils"> <aside class="footnote-list brackets"> <aside class="footnote brackets" id="id3" role="doc-footnote"><span class="label"><span class="fn-bracket">[</span><a role="doc-backlink" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#id1">1</a><span class="fn-bracket">]</span></span> <p>Here is a sample URL: https://aus5.mozilla.org/update/3/Firefox/85.0/20200518093924/WINNT_x86_64-msvc-x64/en-US/release/Windows_NT%2010.0.0.0.18363.1016%20(x64)/default/default/update.xml</p> </aside> <aside class="footnote brackets" id="id4" role="doc-footnote"><span class="label"><span class="fn-bracket">[</span><a role="doc-backlink" href="https://firefox--source--docs-mozilla-org.translate.goog/update-infrastructure/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB#id2">2</a><span class="fn-bracket">]</span></span> <p>While not directly related to the watershed, it is notable that due to LZMA MAR support shipping in the previous version (56.0), which was <em>not</em> a watershed for Linux and Mac, we shipped two different sets of MARs for 57.0, 57.0.1, 57.0.2, 57.0.3, and 57.0.4: we had bz2 MARs, which builds older than 56.0 were served, and a separate set of LZMA MARs that were shipped to 56.0 and higher. More details on this can be found on <a class="reference external" href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://docs.google.com/spreadsheets/d/1xcs9iTShJI8WBvxrz547Zr5JClqdRUYEZRMbQqdQ58I/edit%23gid%3D0">this awfully complicated spreadsheet that was produced around that time</a>.</p> </aside> </aside> </section> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="Footer"><a href="https://firefox--source--docs-mozilla-org.translate.goog/testing-rust-code/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB" class="btn btn-neutral float-left" title="Testing & Debugging Rust Code" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a> <a href="https://firefox--source--docs-mozilla-org.translate.goog/intl/index.html?_x_tr_sl=pl&_x_tr_tl=tr&_x_tr_hl=en-GB" class="btn btn-neutral float-right" title="Internationalization" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a> </div> <hr> <div role="contentinfo"> <p></p> </div> Built with <a href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://www.sphinx-doc.org/">Sphinx</a> using a <a href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://github.com/readthedocs/sphinx_rtd_theme">theme</a> provided by <a href="https://translate.google.com/website?sl=pl&tl=tr&hl=en-GB&u=https://readthedocs.org">Read the Docs</a>. </footer> </div> </div> </section> </div> <script> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> <script>function gtElInit() {var lib = new google.translate.TranslateService();lib.translatePage('pl', 'tr', function () {});}</script> <script src="https://translate.google.com/translate_a/element.js?cb=gtElInit&hl=en-GB&client=wt" type="text/javascript"></script> </body> </html>