[3.6.0] Rendering Changes (#1148)

* docs(rendering-changed): 3.6.0 rendering changes

* Update upgrade/rendering-changes/3-6-0.md

Co-authored-by: Dimo Dimov <[email protected]>

* docs(rendering-changes): apply feedback

Co-authored-by: Dimo Dimov <[email protected]>

Author: svdimitr

upgrade/rendering-changes/3-6-0.md

@@ -0,0 +1,102 @@
+---
+title: 3.6.0
+description: Handle the rendering changes in the 3.6.0 release of the Telerik UI for Blazor components.
+page_title: Rendering Changes in 3.6.0
+slug: changes-in-3-6-0
+position: 2
+---
+
+# Rendering Changes in 3.6.0
+
+* [Calendar](#calendar)
+* [DateTimePicker](#datetimepicker)
+* [Dialog](#dialog)
+* [Drawer](#drawer)
+* [Grid](#grid)
+* [Menu](#menu)
+* [Pager](#pager)
+* [PanelBar](#panelber)
+* [RadioGroup](#radiogroup)
+* [Scheduler](#scheduler)
+* [TabStrip](#tabstrip)
+* [TimePicker](#timepicker)
+* [Window](#window)
+
+
+## Calendar
+
+* Removed the `k-content` and the `k-calendar-content` CSS classes from the `<table class="k-calendar-table">` element. 
+
+### Calendar Navigation CSS classes
+
+| Pre-3.6.0 | 3.6.0 |
+|---|---|
+| k-nav-today | k-calendar-nav-today |
+| k-nav-prev | k-calendar-nav-prev |
+| k-nav-next | k-calendar-nav-next |
+| k-nav-fast  | k-calendar-nav-today |
+| k-prev-view | k-calendar-nav-prev |
+| k-next-view | k-calendar-nav-next |
+
+## DateTimePicker
+
+* Added `k-datetime-container` CSS class to the `<div class="k-popup">` element.
+
+## Dialog
+
+* Added `k-dialog-action` and `k-window-action` CSS classe to the [Action Buttons]({%slug dialog-action-buttons%})(`<button class="k-button">`).
+* Removed the `k-header` CSS class from the `<div class="k-dialog-titlebar">` element.
+
+## Drawer
+
+* Removed the `k-drawer-mini` CSS class from the `<div class="k-drawer">` element when the Drawer is in [Expanded Mode]({%slug drawer-mini-mode%}).
+* Renamed the `k-drawer-left` and `k-drawer-right` CSS classes to `k-drawer-start` and `k-drawer-end`.
+
+## Grid
+
+* Added `k-sorted` CSS class to the `<th class="k-header">` element when the column is [Sorted]({%slug components/grid/features/sorting%}).
+* Added `k-grid-header-menu` CSS class to the `<span class="k-grid-column-menu">` element.
+* Removed the `k-grid-filter` CSS class from the `<span class="k-grid-column-menu">` element.
+* Added `k-grid-filter-menu` and `k-grid-header-menu` CSS classes to the outermost HTML element of the [Filter Menu]({%slug grid-filter-menu%}).
+
+## Menu
+
+* Added `k-first` CSS class to the first Menu item.
+* Added `k-last` CSS class to the last Menu item.
+
+## Pager
+
+* Added `k-pager` CSS class to the outermost HTML element of the Pager.
+* Removed the `k-pager-wrap` CSS class from the outermost HTML element of the Pager.
+
+## PanelBar
+
+* Added `k-panelbar-item` CSS class to the `<li class="k-panelbar-header">`.
+* Removed the `k-item` CSS class from the `<li class="k-panelbar-header">`.
+
+## RadioGroup
+
+* Added `k-disabled` class to the `<li class="k-radio-item">` element when the RadioGroup item is disabled.
+
+## Scheduler
+
+* Added `<span>` element that wraps the `Show business hours` button
+* Removed the `k-scheduler-flex` CSS class from the `<div class="k-scheduler">`.
+
+## TabStrip
+
+* Added `k-first` CSS class to the first TabStrip tab.
+* Added `k-last` CSS class to the last TabStrip tab.
+
+## TimePicker
+
+* Added `k-button-flat-primary` and `k-time-now` CSS classes to the `<button class="k-button">` element.
+
+## Window
+
+* Added `k-window-minimized` CSS class when the Window is minimized.
+* Added `k-window-action` CSS class to the [Action Buttons]({%slug components/window/actions%})(`<button class="k-button">`).
+
+## See also
+
+* [Good styling practices]({%slug good-styling-practices%})