# Failure OIDC and SAML when upgrade keycloak 12.0.4 to 21.1.1

**URL:** <https://forum.keycloak.org/t/failure-oidc-and-saml-when-upgrade-keycloak-12-0-4-to-21-1-1/22426>\
**Category:** Getting advice\
**Tags:** oidc, saml\
**Created:** [June 1, 2023, 3:36am UTC](https://forum.keycloak.org/t/failure-oidc-and-saml-when-upgrade-keycloak-12-0-4-to-21-1-1/22426 "2023-06-01T03:36:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tranvannhan1911](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/tranvannhan1911/32/8067_2.png) [@tranvannhan1911](https://forum.keycloak.org/u/tranvannhan1911)\
**Post date:** [June 1, 2023, 3:36am UTC](https://forum.keycloak.org/t/failure-oidc-and-saml-when-upgrade-keycloak-12-0-4-to-21-1-1/22426/1 "2023-06-01T03:36:46Z")

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Hi everyone,

I am just upgrading Keycloak 12.0.4 to 21.1.1, it upgrades perfectly, and common features like login, register, and extension is working fine. However, almost my clients have broken. Is there any change in OIDC and SAML in Keycloak 21.1.1? like flow, attribute, token,… Whether we have to change the client’s source code to fix this problem?

Thank you very much.