Impact Score: 5/10
Keycloak 26.0.4 — 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 26.0.4. 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)
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<h2>Upgrading</h2>
<p>Before upgrading refer to <a href="file:/home/runner/work/keycloak-rel/keycloak-rel/target/web/docs/latest/upgrading/index.html#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/34284">#34284</a> Keycloak-admin-client should work with the future versions of Keycloak server <code>admin/client-java</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/34382">#34382</a> Make the organization chapter of Server Admin guide available on downstream </li>
</ul>
<h3>Bugs</h3>
<ul>
<li><a href="https://github.com/keycloak/keycloak/issues/14562">#14562</a> Broken Promise implementation for AuthZ JS <code>adapter/javascript</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/25917">#25917</a> Allow increasing wait time on each failure after the max number of failures is reached <code>authentication</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/33627">#33627</a> ClassNotFoundException OracleXADataSource/OracleDataSource using IDELauncher with Keycloak 26.0.0 <code>dist/quarkus</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/33731">#33731</a> Client Scope updates are not replicated on a distributed keycloak setup in kubernetes <code>admin/api</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/33798">#33798</a> CVE-2021-44549 - org.eclipse.angus/angus-mail: Enabling Secure Server Identity Checks for Safer SMTPS Communication <code>dist/quarkus</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/33987">#33987</a> keycloak.v2 registration: Password policy validation error "errorList is null" <code>login/ui</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/34042">#34042</a> LDAP Pagination not working for role membership in GET_ROLES_FROM_USER_MEMBEROF_ATTRIBUTE strategy <code>ldap</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/34050">#34050</a> Listing federated LDAP users is very slow with import enabled <code>ldap</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/34093">#34093</a> java.util.ConcurrentModificationException when process user sessions update <code>infinispan</code></li>
<li><a href="https://github.com/keycloak/keycloak/issues/34412">#34412</a> LDAP: searching users with import disabled is slower since fix for 34050 <code>ldap</code></li>
</ul>
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