To access the SAPUI5 version at runtime, you can use the following code:
sap.ui.require([
"sap/ui/VersionInfo",
"sap/base/util/Version"
], function(VersionInfo, VersionUtil) {
VersionInfo.load().then(function(oCurrentVersionInfo) {
var oVersionUtil = new VersionUtil(oCurrentVersionInfo.version);
// ...
});
});