<ul data-eligibleForWebStory="true">In Oracle 23ai, Grid software patches can be applied using gridSetup.sh script with a GUI interface.The process can be carried out with zero downtime for applying Release Update 23.6 to Grid Infrastructure version 23.5.To start, Grid Infrastructure software version 23.6 needs to be installed as software only.After installation, the /grid/23.6/root.sh script needs to be executed to configure Grid Infrastructure.Executing the script launches the Grid Infrastructure Setup Wizard for patch application.The final step involves running /grid/23.6/root.sh script to apply the patch after configuration.The patch application process involves pre-patch and post-patch steps for successful updating.Upon completion, the Oracle Grid Infrastructure version is upgraded to 23.6 successfully.The Oracle Grid Infrastructure version is confirmed as 23.6 after the patch application.