It'll be good to have such event for adding custom behavior to some of the child components.

Can you start to support jQuery 3.x.

It would be good to have possibility to put button groups into multiple lines. Like Jquery Mobile. There is offeten to few space and too many buttons to fit them without multiple lies.

Feature request Histogram

Something similar to this: http://ui.ajax.org/#demos/elements.flowchart

It would be very useful from a visual and functional perspective to be able to view scheduler items in a multi-year view, that seems to be currently unsupported.

I currently need a KendoUI version of  telerik:RadFilter. 
Like many here I have been using the Telerik ASP.NET controls since they were first launch and I am now migrating to KendoUI. It was my understanding that there was meant to be a migration so that all that was available in web forms would be available in KendoUI.
Of course the kendo version of  telerik:RadFilter has to cope with AngularJS, BreezeJS and OData - tho best start with the Kendo DataStore.

It would be nice to know what version a function or method was released in. Please add the version to the documentation so users can easily understand if the function is available in the version they are using.

Now, I am doing with the Spreadsheet. I have a problem. 

When I change font to Japanese, and then I enter characters to cell.

The first character was disabled, other characters displayed normally.

It only cause with Japanese font.

Please help me about this problem

When exporting a PDF kendo returns a promise that is used to track progress and completion. When exporting to Excel the UI simply locks until the file is ready to be saved.

It would be nice if exporting to Excel worked like exporting to PDF so the UI didn't lock while waiting for the file to process.

Locked columns can only be on one side of the Grid.
In Kendo Grid, is it possible to have locked columns on the left and right side.
For Eg: my grid has like 20 columns and i want to lock first few columns to the left side and also lock the custom commands column on the right side of the grid.

It would be nice to have a slider for the images.

Please create a multi-text control (free text, no selection) like this:
http://docs.webix.com/samples/60_pro/02_form/01_multitext.html
None of your current widgets does this, and simulating it with a listview, a multi-select or even a one-column grid is not a valid option for such an otherwise simple control.
The control is meant to store and return an array of arbitrary values, but ideally it could be extended to use any type of sub-control, like date-pickers for multiple dates, masked text boxes for structured values, etc.

Can you add an undo button to Editor control to undo typing?

When hovering over a chart legend item, it would be nice if the underlying series/data item in the chart could be highlighted in a similar way as when the mouse is over the series/data item.

Unit tests are usually a part of the complete solution. If I pay for the code, I'd like to be able to make minor changes and verify they work.

The functionality of the RadTagCloud control in UI for ASP.NET AJAX would be a handy addition to the UI for MVC toolset.

Current Radial Gauge setting for pointer does not have length property. It has CAP property - we need similar type of property for length. the value can be 0 to 1. This is useful when multiple pointers are added and each can have different length and color as well.

Support for multiple pointers in guages