Impact Score: 5/10
Keycloak 26.4.2 — Release Notes & Engineering Impact
Source available — automated, not human-reviewed
Component: keycloak · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
Keycloak 26.4.2. Source highlight: Before upgrading refer to
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
📄 View Raw Release Notes (Original Developer Log)
<div>
<h2>Upgrading</h2>
<p>Before upgrading refer to <a href="https://www.keycloak.org/docs/latest/upgrading/#migration-changes">the migration guide</a> for a complete list of changes.</p>
<h2>All resolved issues</h2>
<h3>Enhancements</h3>
<ul>
<li><a href="https://github.com/keycloak/keycloak/issues/42991">#42991</a> Final review and update for UPDATE_EMAIL documentation <code>docs</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43351">#43351</a> Make pending email verification attribute removable by admin <code>user-profile</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43650">#43650</a> SPIFFE should support OIDC JWK endpoint </li>
</ul>
<h3>Bugs</h3>
<ul>
<li><a href="https://github.com/keycloak/keycloak/issues/26374">#26374</a> Workflow failure: Quarkus IT - FipsDistTest#testUnsupportedHttpsPkcs12KeyStoreInStrictMode <code>ci</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/30939">#30939</a> Vulnerability in brute force detection settings <code>authentication</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43022">#43022</a> Incorrect Basic Auth encoding for OIDC IDentity Provider when Client ID contains colon <code>identity-brokering</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43191">#43191</a> Upgrade guide for 26.4.0 should mention new minimal PostgreSQL server version 13 requirement <code>docs</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43244">#43244</a> UI crash on admin `/users/add-user` since 26.4.0 <code>admin/ui</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43544">#43544</a> Intra-document links not rendered in downstream <code>docs</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/43561">#43561</a> Server does not shutdown gracefully when started with --optimized <code>core</code></li>
</ul>
</div>