You can check the SAPUI5 runtime library version details on NetWeaver gateway system with following URL in your browser. That should display all installed versions of the UI5 library.
URL: http://<host>:<port>/sap/public/bc/ui5_ui5/
DevOps Zone
You can check the SAPUI5 runtime library version details on NetWeaver gateway system with following URL in your browser. That should display all installed versions of the UI5 library.
URL: http://<host>:<port>/sap/public/bc/ui5_ui5/
