# Keycloak 26.3.4 released

DevFeed: [Keycloak 26.3.4 released](<https://devfeed.tech/articles/keycloak-26-3-4-released-31721.md>)

Original publisher: [Read original article](<https://www.keycloak.org/2025/09/keycloak-2634-released>)

Author: Keycloak Team

Published: 2025-09-12T00:00:00Z

Content type: release

Language: en

Sources: [Keycloak Blog](<https://devfeed.tech/sources/keycloak-blog.md>)

Topics: [Keycloak](<https://devfeed.tech/topics/keycloak.md>), [Quarkus](<https://devfeed.tech/topics/quarkus.md>), [Database](<https://devfeed.tech/topics/database.md>), [LDAP](<https://devfeed.tech/topics/ldap.md>), [OpenID connect (OIDC)](<https://devfeed.tech/topics/oidc.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [idm](<https://devfeed.tech/tags/idm.md>), [kerberos](<https://devfeed.tech/tags/kerberos.md>), [keycloak](<https://devfeed.tech/tags/keycloak.md>), [keycloak-release](<https://devfeed.tech/tags/keycloak-release.md>), [ldap](<https://devfeed.tech/tags/ldap.md>), [oidc](<https://devfeed.tech/tags/oidc.md>), [openid-connect](<https://devfeed.tech/tags/openid-connect.md>), [quarkus](<https://devfeed.tech/tags/quarkus.md>), [release](<https://devfeed.tech/tags/release.md>), [saml](<https://devfeed.tech/tags/saml.md>), [sso](<https://devfeed.tech/tags/sso.md>)

## AI overview

Keycloak 26.3.4 is a release that includes an enhancement, an upgrade to Quarkus 3.20.2.2, and fixes covering session timeouts, database errors, login flows, LDAP group synchronization, configuration, documentation, user-profile validation, and the admin UI.

## Source excerpt

To download the release go to Keycloak downloads. Upgrading Before upgrading refer to the migration guide for a complete list of changes. All resolved issues Enhancements #40630 Double check when working with multithreading. SAST #42245 Upgrade to Quarkus 3.20.2.2 Bugs #35825 Per client session idle time capped by realm level client idle timeout core #40374 Random but frequent duplicate key value violates unique constraint \"constraint_offl_us_ses_pk2\" errors authentication #40463 Login to Account Console produces two consecutive LOGIN events account/ui #40857 Unbounded login_hint Parameter Can Corrupt KC_RESTART Cookie and Break Login Flow oidc #41427 Parallel token exchange fails if client session is expired token-exchange #41801 Lack of coordination in database creation in 26.3.0 causes deployment failures (Reopen) core #41942 Uncaught server error: org.keycloak.models.ModelException: Database operation failed : Sync LDAP Groups to Keycloak (Custom Provider) core #42012 Client session timestamp not updated in the database if running multiple nodes infinispan #42046 KeycloakRealmImport placeholder replacement provides access to sensitive environment variables. operator #42158 Bug in configuration keycoak via keycloak.conf dist/quarkus #42164 [Keycloak CI - Docs] Broken links core #42178 Integer validation error not shown for user profile fields user-profile #42182 Validation errors for required actions don't show translated messages admin/ui #42270 Missing double-dash in the events documentation core #42339 Allowed Client Scopes add openid scope in scope list oidc #42369 Missing client session offline settings on realm level in the admin UI admin/ui