# Keycloak JS 26.2.1 released

DevFeed: [Keycloak JS 26.2.1 released](<https://devfeed.tech/articles/keycloak-js-26-2-1-released-31731.md>)

Original publisher: [Read original article](<https://www.keycloak.org/2025/10/keycloak-js-2621-released>)

Author: Keycloak Team

Published: 2025-10-09T00:00:00Z

Content type: release

Language: en

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

Topics: [Keycloak](<https://devfeed.tech/topics/keycloak.md>), [releases](<https://devfeed.tech/topics/releases.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [test-coverage](<https://devfeed.tech/topics/test-coverage.md>), [migration](<https://devfeed.tech/topics/migration.md>)

Tags: [bugfixes](<https://devfeed.tech/tags/bugfixes.md>), [idm](<https://devfeed.tech/tags/idm.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [kerberos](<https://devfeed.tech/tags/kerberos.md>), [keycloak](<https://devfeed.tech/tags/keycloak.md>), [keycloak-js-release](<https://devfeed.tech/tags/keycloak-js-release.md>), [ldap](<https://devfeed.tech/tags/ldap.md>), [migration-guide](<https://devfeed.tech/tags/migration-guide.md>), [openid-connect](<https://devfeed.tech/tags/openid-connect.md>), [release](<https://devfeed.tech/tags/release.md>), [saml](<https://devfeed.tech/tags/saml.md>), [sso](<https://devfeed.tech/tags/sso.md>), [test-coverage](<https://devfeed.tech/tags/test-coverage.md>)

## AI overview

Keycloak JS 26.2.1 is a patch release following its separation from the main project release cycle. It includes an internal refactor, modern JavaScript language features, a new test suite with more comprehensive test coverage, bug fixes, and small enhancements, with no expected breaking changes for users.

## Source excerpt

Highlights This release of Keycloak JS is the first release after our initial announcement to split if off from the main project release cycle. This release is the result of a large internal refactor to make the code more maintainable and make use of modern JavaScript language features, as well as to introduce a new test suite with more comprehensive test coverage. Even though much has changed under the hood, this is a patch releases, and there should be no breaking changes for users, only bugfixes and small enhancements. Upgrading Before upgrading refer to the migration guide for a complete list of changes.