Hello,

we upgraded to 15.2.20152.1027 and got into an issue with the date editor. 

The column datatype is "datetime" and we use it as a time editor with a spinner. (editorType "date", buttonTyp "spin" enableUTCDates true)

We found a bug in infragistics.lob.js: we use UTCDate and the date value is not passed correctly to the dateeditor, and the spinners are not working correctly. 

We posted another issue yesterday, the dateeditor and datepicker seem to be buggy in this release.

the grids are localized and regionalized (de-de, en-gb, etc...)

Our Temp fix:

_getDateObjectFromValue: function (value) { //DateEditor
if ($.type(value) === "date") {
if (this.options.enableUTCDates) {
value = new Date(Date.UTC(value.getFullYear(), value.getMonth(), value.getDate(), value.getUTCHours(), value.getMinutes()));
}
return value;
} else if (this._mvcDateRegex.test(value)) {
return new Date(parseInt(value.replace(this._mvcDateRegex, "$1"), 10));
} else if (typeof value === "string") {
return this._parseDateFromMaskedValue(value);
} else {
return new Date(value);
}
},

Please have a look at this issues.