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| <link href="css/lts.css" rel="stylesheet"> |
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| <header class="br-lts-header"> |
| <div class="br-lts-header-bg"></div> |
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| <div class="br-lts-header-content"> |
| <div class="br-lts-header-title"> |
| Buildroot LTS |
| </div> |
| <div class="br-lts-header-title"> |
| 3-year long-term support with security fixes |
| </div> |
| </div> |
| </header> |
| |
| <main class="br-lts-main"> |
| <a href="#objectives" id="objectives" class="br-lts-section-header"> |
| <div class="br-lts-bg-grid"></div> |
| <div class="br-lts-title-box">LTS Objectives</div> |
| <div class="br-lts-decoration-dot"></div> |
| </a> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">1</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| 3-year LTS support |
| </h2> |
| <p class="br-lts-item-text"> |
| Starting with version <code>2025.02</code> the LTS support has been extended to |
| <strong>3 years</strong>, replacing the previous 1-year cycle. |
| </p> |
| </div> |
| </div> |
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| <div class="br-lts-separator"></div> |
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| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">2</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Vulnerability tracking & reporting |
| </h2> |
| <p class="br-lts-item-text"> |
| Tracking of the vulnerabilities affecting Buildroot |
| is available at |
| <a href="https://security.buildroot.org/2025.02.x/vulnerability">security.buildroot.org</a>. |
| <br/> |
| LTS stewards ensure this data remains up-to-date by actively |
| maintaining Buildroot packages metadata. |
| </p> |
| </div> |
| </div> |
| |
| <div class="br-lts-separator"></div> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">3</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Sponsored LTS stewards |
| </h2> |
| <p class="br-lts-item-text"> |
| To ensure a consistent release cadence and maintenance |
| workflow, paid LTS stewards are assigned to the weekly LTS |
| maintainance tasks. |
| </p> |
| </div> |
| </div> |
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| <div class="br-lts-separator"></div> |
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| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">4</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Dedicated backports |
| </h2> |
| <p class="br-lts-item-text"> |
| Vulnerability fixes applied to the <code>master</code> branch will be |
| prioritized for backporting to the LTS & stable branches. |
| </p> |
| </div> |
| </div> |
| |
| |
| <a href="#releases" id="releases" class="br-lts-section-header"> |
| <div class="br-lts-bg-grid"></div> |
| <div class="br-lts-title-box">Releases</div> |
| <div class="br-lts-decoration-dot"></div> |
| </a> |
| |
| <p> |
| The Buildroot LTS sponsorship initiative has evolved from a more |
| comprehensive understanding of the needs of our user base. |
| <br/> |
| To address these requirements the release model evolves into the following. |
| <br/> |
| The LTS releases are now extended for a 3-year period. An LTS release |
| is started every 2 years. |
| In between, stable releases are made every 3 months. |
| </p> |
| |
| <br/> |
| |
| <div class="br-lts-chart"> |
| <div class="br-lts-chart-head"> |
| <div class="br-lts-head-spacer"></div> |
| <div class="br-lts-chart-head-label br-lts-span-year">2025</div> |
| <div class="br-lts-chart-head-label br-lts-span-year">2026</div> |
| <div class="br-lts-chart-head-label br-lts-span-year">2027</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2025.02</div> |
| <div class="br-lts-bar br-lts-bar--long br-lts-col-start-2">3 Years Support (LTS)</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2025.05</div> |
| <div class="br-lts-bar br-lts-col-start-3">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2025.08</div> |
| <div class="br-lts-bar br-lts-col-start-4">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2025.11</div> |
| <div class="br-lts-bar br-lts-col-start-5">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2026.02</div> |
| <div class="br-lts-bar br-lts-col-start-6">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2026.05</div> |
| <div class="br-lts-bar br-lts-col-start-7">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2026.08</div> |
| <div class="br-lts-bar br-lts-col-start-8">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2026.11</div> |
| <div class="br-lts-bar br-lts-col-start-9">3 mo</div> |
| </div> |
| |
| <div class="br-lts-chart-row"> |
| <div class="br-lts-chart-label">2027.02</div> |
| <div class="br-lts-bar br-lts-bar--long br-lts-col-start-10">3 Years Support (LTS)</div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--faded"> |
| <div class="br-lts-chart-label">...</div> |
| </div> |
| </div> |
| |
| <br/> |
| <br/> |
| |
| <p> |
| More details about the LTS workflow at <a href="https://gitlab.com/buildroot.org/buildroot-lts-tools">buildroot.org/buildroot-lts-tools</a>. |
| </p> |
| |
| <a href="#organization" id="organization" class="br-lts-section-header"> |
| <div class="br-lts-bg-grid"></div> |
| <div class="br-lts-title-box">How we work</div> |
| <div class="br-lts-decoration-dot"></div> |
| </a> |
| |
| <p> |
| Each week the LTS stewards defines the set of commits to |
| analyze based on the previous week commits to the master branch. The |
| commits are then annotated to define a list of candidates for the LTS |
| branches. |
| <br><br> |
| On Thursday the candidates are cherry-picked to a staging branch to be |
| reviewed by the other maintainers. On Thursday evening the branch is |
| synced with upstream and contributors are notified. Feedback from |
| users, sponsors and autobuilders are then collected and vulnerability |
| analyses updated. |
| </p> |
| <br/> |
| |
| <div class="br-lts-chart"> |
| <div class="br-lts-chart-head"> |
| <div class="br-lts-head-spacer"></div> |
| <div class="br-lts-chart-head-label br-lts-span-day">Monday</div> |
| <div class="br-lts-chart-head-label br-lts-span-day">Tuesday</div> |
| <div class="br-lts-chart-head-label br-lts-span-day">Wednesday</div> |
| <div class="br-lts-chart-head-label br-lts-span-day">Thursday</div> |
| <div class="br-lts-chart-head-label br-lts-span-day">Friday</div> |
| <div class="br-lts-chart-head-label br-lts-span-day">...</div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--tall"> |
| <div class="br-lts-chart-label">Freeze weekly commit set from master</div> |
| <div class="br-lts-bar br-lts-col-start-2"></div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--tall"> |
| <div class="br-lts-chart-label">Apply branch specific patches</div> |
| <div class="br-lts-bar br-lts-col-start-2"></div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--tall"> |
| <div class="br-lts-chart-label">Analysis & commit annotation</div> |
| <div class="br-lts-bar br-lts-bar--span-6 br-lts-col-start-2"></div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--tall"> |
| <div class="br-lts-chart-label">Cherry picking to staging branch</div> |
| <div class="br-lts-bar br-lts-bar--span-2 br-lts-col-start-7"></div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--tall"> |
| <div class="br-lts-chart-label">Sync with upstream branch</div> |
| <div class="br-lts-bar br-lts-col-start-9"></div> |
| </div> |
| |
| <div class="br-lts-chart-row br-lts-chart-row--tall"> |
| <div class="br-lts-chart-label">Update vulns</div> |
| <div class="br-lts-bar br-lts-col-start-10"></div> |
| </div> |
| </div> |
| |
| <a href="#benefits" id="benefits" class="br-lts-section-header"> |
| <div class="br-lts-bg-grid"></div> |
| <div class="br-lts-title-box">Sponsorship benefits</div> |
| <div class="br-lts-decoration-dot"></div> |
| </a> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">1</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Long-term sustainability |
| </h2> |
| <p class="br-lts-item-text"> |
| Sponsors ensure the long-term sustainability of the Buildroot |
| LTS effort with dedicated stewards assigned to tasks such as |
| backporting, security monitoring and LTS releases. |
| </p> |
| </div> |
| </div> |
| |
| <div class="br-lts-separator"></div> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">2</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Recognition of your sponsorship |
| </h2> |
| <p class="br-lts-item-text"> |
| Sponsors can be publicly acknowledged on the Buildroot website. |
| Sponsors may provide a logo linking to a webpage of their |
| choice. |
| </p> |
| </div> |
| </div> |
| |
| <div class="br-lts-separator"></div> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">3</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Direct interaction with LTS stewards |
| </h2> |
| <p class="br-lts-item-text"> |
| Sponsors may submit queries and requests regarding |
| Buildroot LTS and security updates. |
| </p> |
| </div> |
| </div> |
| |
| <div class="br-lts-separator"></div> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">4</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Assignment of priorities for package tracking |
| </h2> |
| <p class="br-lts-item-text"> |
| Buildroot integrates more than 2000 open source packages, |
| many of which do not offer long-term stable releases or |
| security updates. |
| <br/> |
| <br/> |
| Sponsors may submit a priority list indicating: <br/> |
| - Packages of interest<br/> |
| - Architectures of interest<br/> |
| </p> |
| </div> |
| </div> |
| |
| <div class="br-lts-separator"></div> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">5</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Testing of your packages |
| </h2> |
| <p class="br-lts-item-text"> |
| To make sure the packages of interest to the sponsors don't |
| include regressions between releases. |
| Sponsors may submit a list of packages to be tested |
| before an LTS & stable release. |
| </p> |
| </div> |
| </div> |
| |
| <div class="br-lts-separator"></div> |
| |
| <div class="br-lts-item-row"> |
| <div class="br-lts-item-number">6</div> |
| <div class="br-lts-item-content"> |
| <h2 class="br-lts-item-title"> |
| Personalized security reports |
| </h2> |
| <p class="br-lts-item-text"> |
| Sponsors receive personalized security reports for their |
| Buildroot packages in the form of |
| <a href="https://security.buildroot.org/">security.buildroot.org</a> |
| with comparison with the upstream branches. |
| </p> |
| </div> |
| </div> |
| |
| <a href="#sponsor" id="sponsor" class="br-lts-section-header"> |
| <div class="br-lts-bg-grid"></div> |
| <div class="br-lts-title-box">Sponsor now !</div> |
| <div class="br-lts-decoration-dot"></div> |
| </a> |
| <p> |
| Interested ? Contact us at |
| <a href="mailto:buildroot-lts@buildroot.org">buildroot-lts@buildroot.org</a> |
| to learn more about the different sponsorship tiers and get all the |
| details about the sponsorship. |
| </p> |
| </main> |
| |
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