` element.
* [#11859](https://dev.ckeditor.com/ticket/11859): Fixed: Removed the [Source Dialog](https://ckeditor.com/cke4/addon/sourcedialog) plugin dependency from the [Code Snippet](https://ckeditor.com/cke4/addon/codesnippet) sample.
* [#11754](https://dev.ckeditor.com/ticket/11754): [Chrome] Fixed: Infinite loop when content includes not closed attributes.
* [#11848](https://dev.ckeditor.com/ticket/11848): [IE] Fixed: [`editor.insertElement()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-insertElement) throwing an exception when there was no selection in the editor.
* [#11801](https://dev.ckeditor.com/ticket/11801): Fixed: Editor anchors unavailable when linking the [Enhanced Image](https://ckeditor.com/cke4/addon/image2) widget.
* [#11626](https://dev.ckeditor.com/ticket/11626): Fixed: [Table Resize](https://ckeditor.com/cke4/addon/tableresize) sets invalid column width.
* [#11872](https://dev.ckeditor.com/ticket/11872): Made [`element.addClass()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_element.html#method-addClass) chainable symmetrically to [`element.removeClass()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_element.html#method-removeClass).
* [#11813](https://dev.ckeditor.com/ticket/11813): Fixed: Link lost while pasting a captioned image and restoring an undo snapshot ([Enhanced Image](https://ckeditor.com/cke4/addon/image2)).
* [#11814](https://dev.ckeditor.com/ticket/11814): Fixed: _Link_ and _Unlink_ entries persistently displayed in the [Enhanced Image](https://ckeditor.com/cke4/addon/image2) context menu.
* [#11839](https://dev.ckeditor.com/ticket/11839): [IE9] Fixed: The caret jumps out of the editable area when resizing the editor in the source mode.
* [#11822](https://dev.ckeditor.com/ticket/11822): [WebKit] Fixed: Editing anchors by double-click is broken in some cases.
* [#11823](https://dev.ckeditor.com/ticket/11823): [IE8] Fixed: [Table Resize](https://ckeditor.com/cke4/addon/tableresize) throws an error over scrollbar.
* [#11788](https://dev.ckeditor.com/ticket/11788): Fixed: It is not possible to change the language back to _Not set_ in the [Code Snippet](https://ckeditor.com/cke4/addon/codesnippet) dialog window.
* [#11788](https://dev.ckeditor.com/ticket/11788): Fixed: [Filter](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.htmlParser.filter.html) rules are not applied inside elements with the `contenteditable` attribute set to `true`.
* [#11798](https://dev.ckeditor.com/ticket/11798): Fixed: Inserting a non-editable element inside a table cell breaks the table.
* [#11793](https://dev.ckeditor.com/ticket/11793): Fixed: Drop-down is not "on" when clicking it while the editor is blurred.
* [#11850](https://dev.ckeditor.com/ticket/11850): Fixed: Fake objects with the `contenteditable` attribute set to `false` are not downcasted properly.
* [#11811](https://dev.ckeditor.com/ticket/11811): Fixed: Widget's data is not encoded correctly when passed to an attribute.
* [#11777](https://dev.ckeditor.com/ticket/11777): Fixed encoding ampersand in the [Mathematical Formulas](https://ckeditor.com/cke4/addon/mathjax) plugin.
* [#11880](https://dev.ckeditor.com/ticket/11880): [IE8-9] Fixed: Linked image has a default thick border.
Other Changes:
* [#11807](https://dev.ckeditor.com/ticket/11807): Updated jQuery version used in the sample to 1.11.0 and tested CKEditor jQuery Adapter with version 1.11.0 and 2.1.0.
* [#9504](https://dev.ckeditor.com/ticket/9504): Stopped using deprecated `attribute.specified` in all browsers except Internet Explorer.
* [#11809](https://dev.ckeditor.com/ticket/11809): Changed tab size in `` to 4 spaces.
## CKEditor 4.4
**Important Notes:**
* Marked the [`editor.beforePaste`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#event-beforePaste) event as deprecated.
* The default class of captioned images has changed to `image` (was: `caption`). Please note that once edited in CKEditor 4.4+, all existing images of the `caption` class (``) will be [filtered out](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html) unless the [`config.image2_captionedClass`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html#cfg-image2_captionedClass) option is set to `caption`. For backward compatibility (i.e. when upgrading), it is highly recommended to use this setting, which also helps prevent CSS conflicts, etc. This does not apply to new CKEditor integrations.
* Widgets without defined buttons are no longer registered automatically to the [Advanced Content Filter](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html). Before CKEditor 4.4 widgets were registered to the ACF which was an incorrect behavior ([#11567](https://dev.ckeditor.com/ticket/11567)). This change should not have any impact on standard scenarios, but if your button does not execute the widget command, you need to set [`allowedContent`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_feature.html#property-allowedContent) and [`requiredContent`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_feature.html#property-requiredContent) properties for it manually, because the editor will not be able to find them.
* The [Show Borders](https://ckeditor.com/cke4/addon/showborders) plugin was added to the Standard installation package in order to ensure that unstyled tables are still visible for the user ([#11665](https://dev.ckeditor.com/ticket/11665)).
* Since CKEditor 4.4 the editor instance should be passed to [`CKEDITOR.style`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.style.html) methods to ensure full compatibility with other features (e.g. applying styles to widgets requires that). We ensured backward compatibility though, so the [`CKEDITOR.style`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.style.html) will work even when the editor instance is not provided.
New Features:
* [#11297](https://dev.ckeditor.com/ticket/11297): Styles can now be applied to widgets. The definition of a style which can be applied to a specific widget must contain two additional properties — `type` and `widget`. Read more in the [Widget Styles](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_styles.html#widget-styles) section of the "Syles Drop-down" guide. Note that by default, widgets support only classes and no other attributes or styles. Related changes and features:
* Introduced the [`CKEDITOR.style.addCustomHandler()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_style.html#static-method-addCustomHandler) method for registering custom style handlers.
* The [`CKEDITOR.style.apply()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_style.html#method-apply) and [`CKEDITOR.style.remove()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_style.html#method-remove) methods are now called with an editor instance instead of the document so they can be reused by the [`CKEDITOR.editor.applyStyle()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-applyStyle) and [`CKEDITOR.editor.removeStyle()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-removeStyle) methods. Backward compatibility was preserved, but from CKEditor 4.4 it is highly recommended to pass an editor instead of a document to these methods.
* Many new methods and properties were introduced in the [Widget API](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.plugins.widget.html) to make the handling of styles by widgets fully customizable. See: [`widget.definition.styleableElements`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget_definition.html#property-styleableElements), [`widget.definition.styleToAllowedContentRule`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget_definition.html#property-styleToAllowedContentRules), [`widget.addClass()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-addClass), [`widget.removeClass()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-removeClass), [`widget.getClasses()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-getClasses), [`widget.hasClass()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-hasClass), [`widget.applyStyle()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-applyStyle), [`widget.removeStyle()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-removeStyle), [`widget.checkStyleActive()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#method-checkStyleActive).
* Integration with the [Allowed Content Filter](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html) required an introduction of the [`CKEDITOR.style.toAllowedContent()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_style.html#method-toAllowedContentRules) method which can be implemented by the custom style handler and if exists, it is used by the [`CKEDITOR.filter`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.filter.html) to translate a style to [allowed content rules](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.filter.allowedContentRules.html).
* [#11300](https://dev.ckeditor.com/ticket/11300): Various changes in the [Enhanced Image](https://ckeditor.com/cke4/addon/image2) plugin:
* Introduced the [`config.image2_captionedClass`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html#cfg-image2_captionedClass) option to configure the class of captioned images.
* Introduced the [`config.image2_alignClasses`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html#cfg-image2_alignClasses) option to configure the way images are aligned with CSS classes.
If this setting is defined, the editor produces classes instead of inline styles for aligned images.
* Default image caption can be translated (customized) with the `editor.lang.image2.captionPlaceholder` string.
* [#11341](https://dev.ckeditor.com/ticket/11341): [Enhanced Image](https://ckeditor.com/cke4/addon/image2) plugin: It is now possible to add a link to any image type.
* [#10202](https://dev.ckeditor.com/ticket/10202): Introduced wildcard support in the [Allowed Content Rules](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_allowed_content_rules.html) format.
* [#10276](https://dev.ckeditor.com/ticket/10276): Introduced blacklisting in the [Allowed Content Filter](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html).
* [#10480](https://dev.ckeditor.com/ticket/10480): Introduced code snippets with code highlighting. There are two versions available so far — the default [Code Snippet](https://ckeditor.com/cke4/addon/codesnippet) which uses the [highlight.js](http://highlightjs.org) library and the [Code Snippet GeSHi](https://ckeditor.com/cke4/addon/codesnippetgeshi) which uses the [GeSHi](http://qbnz.com/highlighter/) library.
* [#11737](https://dev.ckeditor.com/ticket/11737): Introduced an option to prevent [filtering](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html) of an element that matches custom criteria (see [`filter.addElementCallback()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_filter.html#method-addElementCallback)).
* [#11532](https://dev.ckeditor.com/ticket/11532): Introduced the [`editor.addContentsCss()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-addContentsCss) method that can be used for [adding custom CSS files](https://ckeditor.com/docs/ckeditor4/latest/guide/plugin_sdk_styles.html).
* [#11536](https://dev.ckeditor.com/ticket/11536): Added the [`CKEDITOR.tools.htmlDecode()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_tools.html#method-htmlDecode) method for decoding HTML entities.
* [#11225](https://dev.ckeditor.com/ticket/11225): Introduced the [`CKEDITOR.tools.transparentImageData`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_tools.html#property-transparentImageData) property which contains transparent image data to be used in CSS or as image source.
Other Changes:
* [#11377](https://dev.ckeditor.com/ticket/11377): Unified internal representation of empty anchors using the [fake objects](https://ckeditor.com/cke4/addon/fakeobjects).
* [#11422](https://dev.ckeditor.com/ticket/11422): Removed Firefox 3.x, Internet Explorer 6 and Opera 12.x leftovers in code.
* [#5217](https://dev.ckeditor.com/ticket/5217): Setting data (including switching between modes) creates a new undo snapshot. Besides that:
* Introduced the [`editable.status`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editable.html#property-status) property.
* Introduced a new `forceUpdate` option for the [`editor.lockSnapshot`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#event-lockSnapshot) event.
* Fixed: Selection not being unlocked in inline editor after setting data ([#11500](https://dev.ckeditor.com/ticket/11500)).
* The [WebSpellChecker](https://ckeditor.com/cke4/addon/wsc) plugin was updated to the latest version.
Fixed Issues:
* [#10190](https://dev.ckeditor.com/ticket/10190): Fixed: Removing block style with [`editor.removeStyle()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-removeStyle) should result in a paragraph and not a div.
* [#11727](https://dev.ckeditor.com/ticket/11727): Fixed: The editor tries to select a non-editable image which was clicked.
## CKEditor 4.3.5
New Features:
* Added new translation: Tatar.
Fixed Issues:
* [#11677](https://dev.ckeditor.com/ticket/11677): Fixed: Undo/Redo keystrokes are blocked in the source mode.
* [#11717](https://dev.ckeditor.com/ticket/11717): [Document Properties](https://ckeditor.com/cke4/addon/docprops) plugin requires the [Color Dialog](https://ckeditor.com/cke4/addon/colordialog) plugin to work.
## CKEditor 4.3.4
Fixed Issues:
* [#11597](https://dev.ckeditor.com/ticket/11597): [IE11] Fixed: Error thrown when trying to open the [preview](https://ckeditor.com/cke4/addon/preview) using the keyboard.
* [#11544](https://dev.ckeditor.com/ticket/11544): [Placeholders](https://ckeditor.com/cke4/addon/placeholder) will no longer be upcasted in parents not accepting `` elements.
* [#8663](https://dev.ckeditor.com/ticket/8663): Fixed [`element.renameNode()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_element.html#method-renameNode) not clearing the [`element.getName()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_element.html#method-getName) cache.
* [#11574](https://dev.ckeditor.com/ticket/11574): Fixed: *Backspace* destroying the DOM structure if an inline editable is placed in a list item.
* [#11603](https://dev.ckeditor.com/ticket/11603): Fixed: [Table Resize](https://ckeditor.com/cke4/addon/tableresize) attaches to tables outside the editable.
* [#9205](https://dev.ckeditor.com/ticket/9205), [#7805](https://dev.ckeditor.com/ticket/7805), [#8216](https://dev.ckeditor.com/ticket/8216): Fixed: `{cke_protected_1}` appearing in data in various cases where HTML comments are placed next to `"` or `'`.
* [#11635](https://dev.ckeditor.com/ticket/11635): Fixed: Some attributes are not protected before the content is passed through the fix bin.
* [#11660](https://dev.ckeditor.com/ticket/11660): [IE] Fixed: Table content is lost when some extra markup is inside the table.
* [#11641](https://dev.ckeditor.com/ticket/11641): Fixed: Switching between modes in the classic editor removes content styles for the inline editor.
* [#11568](https://dev.ckeditor.com/ticket/11568): Fixed: [Styles](https://ckeditor.com/cke4/addon/stylescombo) drop-down list is not enabled on selection change.
## CKEditor 4.3.3
Fixed Issues:
* [#11500](https://dev.ckeditor.com/ticket/11500): [WebKit/Blink] Fixed: Selection lost when setting data in another inline editor. Additionally, [`selection.removeAllRanges()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_selection.html#method-removeAllRanges) is now scoped to selection's [root](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_selection.html#property-root).
* [#11104](https://dev.ckeditor.com/ticket/11104): [IE] Fixed: Various issues with scrolling and selection when focusing widgets.
* [#11487](https://dev.ckeditor.com/ticket/11487): Moving mouse over the [Enhanced Image](https://ckeditor.com/cke4/addon/image2) widget will no longer change the value returned by the [`editor.checkDirty()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-checkDirty) method.
* [#8673](https://dev.ckeditor.com/ticket/8673): [WebKit] Fixed: Cannot select and remove the [Page Break](https://ckeditor.com/cke4/addon/pagebreak).
* [#11413](https://dev.ckeditor.com/ticket/11413): Fixed: Incorrect [`editor.execCommand()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-execCommand) behavior.
* [#11438](https://dev.ckeditor.com/ticket/11438): Splitting table cells vertically is no longer changing table structure.
* [#8899](https://dev.ckeditor.com/ticket/8899): Fixed: Links in the [About CKEditor](https://ckeditor.com/cke4/addon/about) dialog window now open in a new browser window or tab.
* [#11490](https://dev.ckeditor.com/ticket/11490): Fixed: [Menu button](https://ckeditor.com/cke4/addon/menubutton) panel not showing in the source mode.
* [#11417](https://dev.ckeditor.com/ticket/11417): The [`widget.doubleclick`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget.html#event-doubleclick) event is not canceled anymore after editing was triggered.
* [#11253](https://dev.ckeditor.com/ticket/11253): [IE] Fixed: Clipped upload button in the [Enhanced Image](https://ckeditor.com/cke4/addon/image2) dialog window.
* [#11359](https://dev.ckeditor.com/ticket/11359): Standardized the way anchors are discovered by the [Link](https://ckeditor.com/cke4/addon/link) plugin.
* [#11058](https://dev.ckeditor.com/ticket/11058): [IE8] Fixed: Error when deleting a table row.
* [#11508](https://dev.ckeditor.com/ticket/11508): Fixed: [`htmlDataProcessor`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.htmlDataProcessor.html) discovering protected attributes within other attributes' values.
* [#11533](https://dev.ckeditor.com/ticket/11533): Widgets: Avoid recurring upcasts if the DOM structure was modified during an upcast.
* [#11400](https://dev.ckeditor.com/ticket/11400): Fixed: The [`domObject.removeAllListeners()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_domObject.html#method-removeAllListeners) method does not remove custom listeners completely.
* [#11493](https://dev.ckeditor.com/ticket/11493): Fixed: The [`selection.getRanges()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_dom_selection.html#method-getRanges) method does not override cached ranges when used with the `onlyEditables` argument.
* [#11390](https://dev.ckeditor.com/ticket/11390): [IE] All [XML](https://ckeditor.com/cke4/addon/xml) plugin [methods](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.xml.html) now work in IE10+.
* [#11542](https://dev.ckeditor.com/ticket/11542): [IE11] Fixed: Blurry toolbar icons when Right-to-Left UI language is set.
* [#11504](https://dev.ckeditor.com/ticket/11504): Fixed: When [`config.fullPage`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html#cfg-fullPage) is set to `true`, entities are not encoded in editor output.
* [#11004](https://dev.ckeditor.com/ticket/11004): Integrated [Enhanced Image](https://ckeditor.com/cke4/addon/image2) dialog window with [Advanced Content Filter](https://ckeditor.com/docs/ckeditor4/latest/guide/dev_advanced_content_filter.html).
* [#11439](https://dev.ckeditor.com/ticket/11439): Fixed: Properties get cloned in the Cell Properties dialog window if multiple cells are selected.
## CKEditor 4.3.2
Fixed Issues:
* [#11331](https://dev.ckeditor.com/ticket/11331): A menu button will have a changed label when selected instead of using the `aria-pressed` attribute.
* [#11177](https://dev.ckeditor.com/ticket/11177): Widget drag handler improvements:
* [#11176](https://dev.ckeditor.com/ticket/11176): Fixed: Initial position is not updated when the widget data object is empty.
* [#11001](https://dev.ckeditor.com/ticket/11001): Fixed: Multiple synchronous layout recalculations are caused by initial drag handler positioning causing performance issues.
* [#11161](https://dev.ckeditor.com/ticket/11161): Fixed: Drag handler is not repositioned in various situations.
* [#11281](https://dev.ckeditor.com/ticket/11281): Fixed: Drag handler and mask are duplicated after widget reinitialization.
* [#11207](https://dev.ckeditor.com/ticket/11207): [Firefox] Fixed: Misplaced [Enhanced Image](https://ckeditor.com/cke4/addon/image2) resizer in the inline editor.
* [#11102](https://dev.ckeditor.com/ticket/11102): `CKEDITOR.template` improvements:
* [#11102](https://dev.ckeditor.com/ticket/11102): Added newline character support.
* [#11216](https://dev.ckeditor.com/ticket/11216): Added "\\'" substring support.
* [#11121](https://dev.ckeditor.com/ticket/11121): [Firefox] Fixed: High Contrast mode is enabled when the editor is loaded in a hidden iframe.
* [#11350](https://dev.ckeditor.com/ticket/11350): The default value of [`config.contentsCss`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_config.html#cfg-contentsCss) is affected by [`CKEDITOR.getUrl()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR.html#method-getUrl).
* [#11097](https://dev.ckeditor.com/ticket/11097): Improved the [Autogrow](https://ckeditor.com/cke4/addon/autogrow) plugin performance when dealing with very big tables.
* [#11290](https://dev.ckeditor.com/ticket/11290): Removed redundant code in the [Source Dialog](https://ckeditor.com/cke4/addon/sourcedialog) plugin.
* [#11133](https://dev.ckeditor.com/ticket/11133): [Page Break](https://ckeditor.com/cke4/addon/pagebreak) becomes editable if pasted.
* [#11126](https://dev.ckeditor.com/ticket/11126): Fixed: Native Undo executed once the bottom of the snapshot stack is reached.
* [#11131](https://dev.ckeditor.com/ticket/11131): [Div Editing Area](https://ckeditor.com/cke4/addon/divarea): Fixed: Error thrown when switching to source mode if the selection was in widget's nested editable.
* [#11139](https://dev.ckeditor.com/ticket/11139): [Div Editing Area](https://ckeditor.com/cke4/addon/divarea): Fixed: Elements Path is not cleared after switching to source mode.
* [#10778](https://dev.ckeditor.com/ticket/10778): Fixed a bug with range enlargement. The range no longer expands to visible whitespace.
* [#11146](https://dev.ckeditor.com/ticket/11146): [IE] Fixed: Preview window switches Internet Explorer to Quirks Mode.
* [#10762](https://dev.ckeditor.com/ticket/10762): [IE] Fixed: JavaScript code displayed in preview window's URL bar.
* [#11186](https://dev.ckeditor.com/ticket/11186): Introduced the [`widgets.repository.addUpcastCallback()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget_repository.html#method-addUpcastCallback) method that allows to block upcasting given element to a widget.
* [#11307](https://dev.ckeditor.com/ticket/11307): Fixed: Paste as Plain Text conflict with the [MooTools](http://mootools.net) library.
* [#11140](https://dev.ckeditor.com/ticket/11140): [IE11] Fixed: Anchors are not draggable.
* [#11379](https://dev.ckeditor.com/ticket/11379): Changed default contents `line-height` to unitless values to avoid huge text overlapping (like in [#9696](https://dev.ckeditor.com/ticket/9696)).
* [#10787](https://dev.ckeditor.com/ticket/10787): [Firefox] Fixed: Broken replacement of text while pasting into `div`-based editor.
* [#10884](https://dev.ckeditor.com/ticket/10884): Widgets integration with the [Show Blocks](https://ckeditor.com/cke4/addon/showblocks) plugin.
* [#11021](https://dev.ckeditor.com/ticket/11021): Fixed: An error thrown when selecting entire editable contents while fake selection is on.
* [#11086](https://dev.ckeditor.com/ticket/11086): [IE8] Re-enable inline widgets drag&drop in Internet Explorer 8.
* [#11372](https://dev.ckeditor.com/ticket/11372): Widgets: Special characters encoded twice in nested editables.
* [#10068](https://dev.ckeditor.com/ticket/10068): Fixed: Support for protocol-relative URLs.
* [#11283](https://dev.ckeditor.com/ticket/11283): [Enhanced Image](https://ckeditor.com/cke4/addon/image2): A `` element with `text-align: center` and an image inside is not recognised correctly.
* [#11196](https://dev.ckeditor.com/ticket/11196): [Accessibility Instructions](https://ckeditor.com/cke4/addon/a11yhelp): Allowed additional keyboard button labels to be translated in the dialog window.
## CKEditor 4.3.1
**Important Notes:**
* To match the naming convention, the `language` button is now `Language` ([#11201](https://dev.ckeditor.com/ticket/11201)).
* [Enhanced Image](https://ckeditor.com/cke4/addon/image2) button, context menu, command, and icon names match those of the [Image](https://ckeditor.com/cke4/addon/image) plugin ([#11222](https://dev.ckeditor.com/ticket/11222)).
Fixed Issues:
* [#11244](https://dev.ckeditor.com/ticket/11244): Changed: The [`widget.repository.checkWidgets()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget_repository.html#method-checkWidgets) method now fires the [`widget.repository.checkWidgets`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget_repository.html#event-checkWidgets) event, so from CKEditor 4.3.1 it is preferred to use the method rather than fire the event.
* [#11171](https://dev.ckeditor.com/ticket/11171): Fixed: [`editor.insertElement()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-insertElement) and [`editor.insertText()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-insertText) methods do not call the [`widget.repository.checkWidgets()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_plugins_widget_repository.html#method-checkWidgets) method.
* [#11085](https://dev.ckeditor.com/ticket/11085): [IE8] Replaced preview generated by the [Mathematical Formulas](https://ckeditor.com/cke4/addon/mathjax) widget with a placeholder.
* [#11044](https://dev.ckeditor.com/ticket/11044): Enhanced WAI-ARIA support for the [Language](https://ckeditor.com/cke4/addon/language) plugin drop-down menu.
* [#11075](https://dev.ckeditor.com/ticket/11075): With drop-down menu button focused, pressing the *Down Arrow* key will now open the menu and focus its first option.
* [#11165](https://dev.ckeditor.com/ticket/11165): Fixed: The [File Browser](https://ckeditor.com/cke4/addon/filebrowser) plugin cannot be removed from the editor.
* [#11159](https://dev.ckeditor.com/ticket/11159): [IE9-10] [Enhanced Image](https://ckeditor.com/cke4/addon/image2): Fixed buggy discovery of image dimensions.
* [#11101](https://dev.ckeditor.com/ticket/11101): Drop-down lists no longer break when given double quotes.
* [#11077](https://dev.ckeditor.com/ticket/11077): [Enhanced Image](https://ckeditor.com/cke4/addon/image2): Empty undo step recorded when resizing the image.
* [#10853](https://dev.ckeditor.com/ticket/10853): [Enhanced Image](https://ckeditor.com/cke4/addon/image2): Widget has paragraph wrapper when de-captioning unaligned image.
* [#11198](https://dev.ckeditor.com/ticket/11198): Widgets: Drag handler is not fully visible when an inline widget is in a heading.
* [#11132](https://dev.ckeditor.com/ticket/11132): [Firefox] Fixed: Caret is lost after drag and drop of an inline widget.
* [#11182](https://dev.ckeditor.com/ticket/11182): [IE10-11] Fixed: Editor crashes (IE11) or works with minor issues (IE10) if a page is loaded in Quirks Mode. See [`env.quirks`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_env.html#property-quirks) for more details.
* [#11204](https://dev.ckeditor.com/ticket/11204): Added `figure` and `figcaption` styles to the `contents.css` file so [Enhanced Image](https://ckeditor.com/cke4/addon/image2) looks nicer.
* [#11202](https://dev.ckeditor.com/ticket/11202): Fixed: No newline in [BBCode](https://ckeditor.com/cke4/addon/bbcode) mode.
* [#10890](https://dev.ckeditor.com/ticket/10890): Fixed: Error thrown when pressing the *Delete* key in a list item.
* [#10055](https://dev.ckeditor.com/ticket/10055): [IE8-10] Fixed: *Delete* pressed on a selected image causes the browser to go back.
* [#11183](https://dev.ckeditor.com/ticket/11183): Fixed: Inserting a horizontal rule or a table in multiple row selection causes a browser crash. Additionally, the [`editor.insertElement()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-insertElement) method does not insert the element into every range of a selection any more.
* [#11042](https://dev.ckeditor.com/ticket/11042): Fixed: Selection made on an element containing a non-editable element was not auto faked.
* [#11125](https://dev.ckeditor.com/ticket/11125): Fixed: Keyboard navigation through menu and drop-down items will now cycle.
* [#11011](https://dev.ckeditor.com/ticket/11011): Fixed: The [`editor.applyStyle()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-applyStyle) method removes attributes from nested elements.
* [#11179](https://dev.ckeditor.com/ticket/11179): Fixed: [`editor.destroy()`](https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_editor.html#method-destroy) does not cleanup content generated by the [Table Resize](https://ckeditor.com/cke4/addon/tableresize) plugin for inline editors.
* [#11237](https://dev.ckeditor.com/ticket/11237): Fixed: Table border attribute value is deleted when pasting content from Microsoft Word.
* [#11250](https://dev.ckeditor.com/ticket/11250): Fixed: HTML entities inside the `