Kendo UI core lists several controls that are available in the library, but there is no mention that they are not actively maintained on main repository readme.

Several controls were obsoleted/unsupported in this commit - https://github.com/telerik/kendo-ui-core/commit/db16f60ee6ee43506173a9628723b3de1ed73266, but they are still listed in https://github.com/telerik/kendo-ui-core/blob/master/README.md or promotional graphics.

Please clarify its current/future status.

Best regards

K