Please check the discussion (also the comments) in post https://answers.sap.com/questions/169040/hana20-express-sapui5-1-missing-sapmsemantic-packa.html. For XS classic there are not updates planned so far for the UI5 version (at the moment it will stay at 1.28). If you wanna benefit from the newer vesions of UI5 you have to switch to XSA or use the version from the public CDN.
Regards,
Florian
Add comment