How to address and remove Warning Messages igniteui-angular 8.0.0

[brookhutchinson]

Description

Warning messages display inside the Google Chrome Developer Tools Console.
I understand that there may be features that have been deprecated.
What do I need to do to address and remove these Warning Messages?

• igniteui-angular version: 8.0.0
• browser: Google Chrome Version 75.0.3770.100 (Official Build) (64-bit)

Steps to reproduce

1. Run Angular App in browser using Angular CLI ng serve command

2. Open Google Developer Tools Console

3. Warning Messages display inside Google Developer Tools Console
   onOpen: 'onOpen' @output property is deprecated. Use 'onOpened' instead.
   te @ igniteui-angular.js.pre-build-optimizer.js:5517

   t.onClose: 'onClose' @output property is deprecated. Use 'onClosed' instead.
   te @ igniteui-angular.js.pre-build-optimizer.js:5517

   t.onFocusChange: onFocusChange event is deprecated. Use onGridKeydown event instead.
   te @ igniteui-angular.js.pre-build-optimizer.js:5517

Result

What is the actual result after following the steps to reproduce?
Warning Messages displays in Google Developer Tools Console

Expected result

What is the expected result after following the steps to reproduce?
No Warning Message displays in Google Developer Tools Console

Attachments

Attach a sample if available, and screenshots, if applicable.

[ViktorSlavov]

@brookhutchinson this appears to be a bug on our end - we are using the deprecated properties internally and that's what causes the warning.

@bkulov , @SAndreeva - in the date-picker control, we're calling the onClose and onOpen emitters which have the DeprecateProperty decorator

@zdrawku - in the grid component, we're calling onFocusChanged emitter which has the DeprecateProperty decorator