Fixed Issues:

• #2114: Fixed: Autocomplete cannot be initialized before instanceReady.
• #2107: Fixed: Holding and releasing the mouse button is not inserting an autocomplete suggestion.
• #2167: Fixed: Matching in Emoji plugin is not case insensitive.
• #2195: Fixed: Emoji shows the suggestion box when the colon is preceded with other characters than white space.
• #2169: [Edge] Fixed: Error thrown when pasting into the editor.
• #1084 Fixed: Using the "Automatic" option with Color Button on a text with the color already defined sets an invalid color value.
• #2271: Fixed: Custom color name not used as a label in the Color Button plugin. Thanks to Eric Geloen!
• #2296: Fixed: Color Button throws an error when activated on a content containing HTML comments.
• #966: Fixed: Executing editor.destroy() during the file upload throws an error. Thanks to Maksim Makarevich!
• #1719: Fixed: Ctrl/Cmd + A inadvertently focuses inline editor if it is starting and ending with a list. Thanks to theNailz!
• #1046: Fixed: Subsequent new links do not include the id attribute. Thanks to Nathan Samson!
• #1348: Fixed: Enhanced Image plugin aspect ratio locking uses an old width and height on image URL change.
• #1791: Fixed: Image and Enhanced Image plugins can be enabled when Easy Image is present.
• #2254: Fixed: Image ratio locking is too precise for resized images. Thanks to Jonathan Gilbert!
• #1184: [IE8-11] Fixed: Copying and pasting data in read-only mode throws an error.
• #1916: [IE9-11] Fixed: Pressing the Delete key in read-only mode throws an error.
• #2003: [Firefox] Fixed: Right-clicking multiple selected table cells containing empty paragraphs removes the selection.
• #1816: Fixed: Table breaks when Enter is pressed over the Table Selection plugin.
• #1115: Fixed: The <font> tag is not preserved when proper configuration is provided and a style is applied by the Font plugin.
• #727: Fixed: Custom styles may be invisible in the Styles Combo plugin.
• #988: Fixed: ACF-enabled custom elements prefixed with object, embed, param are removed from the editor content.

API Changes:

• #2249: Added the editor.plugins.detectConflict() method finding conflicts between provided plugins.

New Features:

• #1751: Introduced the Autocomplete feature that consists of the following plugins:
  • Autocomplete – Provides contextual completion feature for custom text matches based on user input.
  • Text Watcher – Checks whether an editor's text change matches the chosen criteria.
  • Text Match – Allows to search CKEDITOR.dom.range for matching text.
• #1703: Introduced the Mentions plugin providing smart completion feature for custom text matches based on user input starting with a chosen marker character.
• #1746: Introduced the Emoji plugin providing completion feature for emoji ideograms.
• #1761: The Auto Link plugin now supports email links.

Fixed Issues:

• #1458: [Edge] Fixed: After blurring the editor it takes 2 clicks to focus a widget.
• #1034: Fixed: JAWS leaves forms mode after pressing the Enter key in an inline editor instance.
• #1748: Fixed: Missing CKEDITOR.dialog.definition.onHide API documentation. Thanks to sunnyone!
• #1321: Ideographic space character (\u3000) is lost when pasting text.
• #1776: Empty caption placeholder of the Image Base plugin is not hidden when blurred.
• #1592: The Image Base plugin caption is not visible after paste.
• #620: Fixed: The config.forcePasteAsPlainText option is not respected in internal and cross-editor pasting.
• #1467: Fixed: The resizing cursor of the Table Resize plugin appearing in the middle of a merged cell.

API Changes:

• #850: Backward incompatibility: Replaced the replace dialog from the Find / Replace plugin with a tabId option in the find command.
• #1582: The CKEDITOR.editor.addCommand() method can now accept a CKEDITOR.command instance as a parameter.
• #1712: The extraPlugins, removePlugins and plugins configuration options allow whitespace.
• #1802: The extraPlugins, removePlugins and plugins configuration options allow passing plugin names as an array.
• #1724: Added an option to the getClientRect() function allowing to retrieve an absolute bounding rectangle of the element, i.e. a position relative to the upper-left corner of the topmost viewport.
• #1498 : Added a new getClientRects() method to CKEDITOR.dom.range. It returns a list of rectangles for each selected element.
• #1993: Added the CKEDITOR.tools.throttle() function.

Other Changes:

• Updated SCAYT (Spell Check As You Type) and WebSpellChecker (WSC) plugins:
  • Language dictionary update: Added support for the Uzbek Latin language.
  • Languages no longer supported as additional languages: Manx - Isle of Man (gv_GB) and Interlingua (ia_XR).
  • Extended and improved language dictionaries: Georgian and Swedish. Also added the missing word "Ensure" to the American, British and Canada English language.
  • #141 Fixed: SCAYT throws "Uncaught Error: Error in RangyWrappedRange module: createRange(): Parameter must be a Window object or DOM node".
  • #153 [Chrome] Fixed: Correcting a word in the widget in SCAYT moves focus to another editable.
  • #155 [IE8] Fixed: SCAYT throws an error and does not work.
  • #156 [IE10] Fixed: SCAYT does not seem to work.
  • Fixed: After some text is dragged and dropped, the markup is not refreshed for grammar problems in SCAYT.
  • Fixed: Request to FastCGI fails when the user tries to replace a word with non-English characters with a proper suggestion in WSC.
  • [Firefox] Fixed: Ctrl+Z removes focus in SCAYT.
  • Grammar support for default languages was improved.
  • New application source URL was added in SCAYT.
  • Removed green marks and legend related to grammar-supported languages in the Languages tab of SCAYT. Grammar is now supported for almost all the anguages in the list for an additional fee.
  • Fixed: JavaScript error in the console: "Cannot read property 'split' of undefined" in SCAYT and WSC.
  • [IE10] Fixed: Markup is not set for a specific case in SCAYT.
  • Fixed: Accessibility issue: No alt attribute for the logo image in the About tab of SCAYT.

Security Updates:

• Fixed XSS vulnerability in the Enhanced Image (image2) plugin reported by Kyaw Min Thein.

  Issue summary: It was possible to execute XSS inside CKEditor using the <img> tag and specially crafted HTML. Please note that the default presets (Basic/Standard/Full) do not include this plugin, so you are only at risk if you made a custom build and enabled this plugin.

Fixed Issues:

• #1835: Fixed: Integration between CKFinder and File Browser plugin does not work.

New Features:

• #932: Introduced Easy Image feature for inserting images that are automatically rescaled, optimized, responsive and delivered through a blazing-fast CDN. Three new plugins were added to support it:
  • Easy Image,
  • Cloud Services
  • Image Base
• #1338: Keystroke labels are displayed for function keys (like F7, F8).
• #643: The File Browser plugin can now upload files using XHR requests. This allows for setting custom HTTP headers using the config.fileTools_requestHeaders configuration option.
• #1365: The File Browser plugin uses XHR requests by default.
• #1399: Added the possibility to set CKEDITOR.config.startupFocus as start or end to specify where the editor focus should be after the initialization.
• #1441: The Magic Line plugin line element can now be identified by the data-cke-magic-line="1" attribute.

Fixed Issues:

• #595: Fixed: Pasting does not work on mobile devices.
• #869: Fixed: Empty selection clears cached clipboard data in the editor.
• #1419: Fixed: The Widget Selection plugin selects the editor content with the Alt+A key combination on Windows.
• #1274: Fixed: Balloon Toolbar does not match a single selected image using the contextDefinition.cssSelectormatcher.
• #1232: Fixed: Balloon Toolbar buttons should be registered as focusable elements.
• #1342: Fixed: Balloon Toolbar should be re-positioned after the change event.
• #1426: [IE8-9] Fixed: Missing Balloon Toolbar background in the Kama skin. Thanks to Christian Elmer!
• #1470: Fixed: Balloon Toolbar is not visible after drag and drop of a widget it is attached to.
• #1048: Fixed: Balloon Panel is not positioned properly when a margin is added to its non-static parent.
• #889: Fixed: Unclear error message for width and height fields in the Image and Enhanced Image plugins.
• #859: Fixed: Cannot edit a link after a double-click on the text in the link.
• #1013: Fixed: Paste from Word does not work correctly with the config.forcePasteAsPlainText option.
• #1356: Fixed: Border parse function does not allow spaces in the color value.
• #1010: Fixed: The CSS border shorthand property was incorrectly expanded ignoring the border-color style.
• #1535: Fixed: Widget mouseover border contrast is insufficient.
• #1516: Fixed: Fake selection allows removing content in read-only mode using the Backspace and Delete keys.
• #1570: Fixed: Fake selection allows cutting content in read-only mode using the Ctrl/Cmd + X keys.
• #1363: Fixed: Paste notification is unclear and it might confuse users.

API Changes:

• #1346: Balloon Toolbar context manager API is now available in the pluginDefinition.init method of the requiringplugin.
• #1530: Added the possibility to use custom icons for buttons.

Other Changes:

• Updated SCAYT (Spell Check As You Type) and WebSpellChecker plugins:
  • SCAYT scayt_minWordLength configuration option now defaults to 3 instead of 4.
  • SCAYT default number of suggested words in the context menu changed to 3.
  • #90: Fixed: Selection is lost on link creation if SCAYT highlights the word.
  • Fixed: SCAYT crashes when the browser localStorage is disabled.
  • [IE11] Fixed: Unable to get property type of undefined or null reference error in the browser console when SCAYT is disabled/enabled.
  • #46: Fixed: Editing is blocked when remote spell checker server is offline.
  • Fixed: User Dictionary cannot be created in WSC due to You already have the dictionary error.
  • Fixed: Words with apostrophe ' on the replacement make the WSC dialog inaccessible.
  • Fixed: SCAYT/WSC causes the Uncaught TypeError error in the browser console.
• #1337: Updated the samples layout with the new CKEditor 4 logo and color scheme.
• #1591: CKBuilder and language tools are now downloaded over HTTPS. Thanks to August Detlefsen!

New Features:

• #568: Added possibility to adjust nested editables' filters using the CKEDITOR.filter.disallowedContentproperty.

Fixed Issues:

• #554: Fixed: change event not fired when typing the first character after pasting into the editor. Thanks to Daniel Miller!
• #566: Fixed: The CSS border shorthand property with zero width (border: 0px solid #000;) causes the table to have the border attribute set to 1.
• #779: Fixed: The Remove Format plugin removes elements with language definition inserted by the Languageplugin.
• #423: Fixed: The Paste from Word plugin pastes paragraphs into the editor even if CKEDITOR.config.enterModeis set to CKEDITOR.ENTER_BR.
• #719: Fixed: Image inserted using the Enhanced Image plugin can be resized when the editor is in read-only mode.
• #577: Fixed: The "Delete Columns" command provided by the Table Tools plugin throws an error when trying to delete columns.
• #867: Fixed: Typing into a selected table throws an error.
• #817: Fixed: The Save plugin does not work in Source Mode.

Other Changes:

• Updated the WebSpellChecker plugin:
  • #40: Fixed: IE10 throws an error when spell checking is started.
• #800: Added the CKEDITOR.dom.selection.isCollapsed method which is a simpler way to check if the selection is collapsed.
• #830: Added an option to define which dialog tab should be shown by default when creating CKEDITOR.dialogCommand.

New Features:

• #455: Added Advanced Content Filter integration with the Justify plugin.

Fixed Issues:

• #663: [Chrome] Fixed: Clicking the scrollbar throws an Uncaught TypeError: element.is is not a functionerror.
• #520: Fixed: Widgets cannot be properly pasted into a table cell.
• #579: Fixed: Internal cke_table-faked-selection-table class is visible in the Stylesheet Classes field of the Table Properties dialog.
• #545: [Edge] Fixed: Error thrown when pressing the Select All button in Source Mode.
• #582: Fixed: Double slash in the path to stylesheet needed by the Table Selection plugin. Thanks to Marius Dumitru Florea!
• #491: Fixed: Unnecessary dependency on the Editor Toolbar plugin inside the Notification plugin.
• #646: Fixed: Error thrown into the browser console after opening the Styles Combo plugin menu in the editor without any selection.
• #501: Fixed: Double click does not open the dialog for modifying anchors inserted via the Link plugin.
• #9780: [IE8-9] Fixed: Clicking inside an empty read-only editor throws an error.
• #16820: [IE10] Fixed: Clicking below a single horizontal rule throws an error.
• #426: Fixed: The range.cloneContents method selects the whole element when the selection starts at the beginning of that element.
• #644: Fixed: The range.extractContents method returns an incorrect result when multiple nodes are selected.
• #684: Fixed: The elementPath.contains method incorrectly excludes the last element instead of root when the fromTop parameter is set to true.

Other Changes:

• Updated the SCAYT (Spell Check As You Type) plugin:
  • #148: Fixed: SCAYT leaves underlined word after the CKEditor Replace dialog corrects it.
• #751: Added the CKEDITOR.dom.nodeList.toArray method which returns an array representation of a node list.

New Features:

• #16733: Added a new pastel color palette for the Color Button plugin and a new config.colorButton_colorsPerRow configuration option for setting the number of rows in the color selector.
• #16752: Added a new Azerbaijani localization. Thanks to the Azerbaijani language team!
• #13818: It is now possible to group Widget style definitions, so applying one style disables the other.

Fixed Issues:

• #13446: [Chrome] Fixed: It is possible to type in an unfocused inline editor.
• #14856: Fixed: Font size and font family reset each other when modified at certain positions.
• #16745: [Edge] Fixed: List items are lost when pasted from Word.
• #16682: [Edge] Fixed: A list gets pasted from Word as a set of paragraphs. Added the config.pasteFromWord_heuristicsEdgeList configuration option.
• #10373: Fixed: Context menu items can be dragged into the editor.
• #16728: [IE] Fixed: Copy Formatting breaks the editor in Quirks Mode.
• #16795: [IE] Fixed: Copy Formatting breaks the editor in Compatibility Mode.
• #16675: Fixed: Styles applied with Copy Formatting to a single table cell are applied to the whole table.
• #16753: Fixed: element.setSize sets incorrect editor dimensions if the border width is represented as a fraction of pixels.
• #16705: [Firefox] Fixed: Unable to paste images as Base64 strings when using Clipboard.
• #14869: Fixed: JavaScript error is thrown when trying to use Find in a <div>-based editor.

New Features:

• #16639: The callback parameter in the CKEDITOR.ajax.post method became optional.

Fixed Issues:

• #11064: [Blink, WebKit] Fixed: Cannot select all editor content when a widget or a non-editable element is the first or last element of the content. Also fixes this issue in the Select All plugin.
• #14755: [Blink, WebKit, IE8] Fixed: Browser hangs when a table is inserted in the place of a selected list with an empty last item.
• #16624: Fixed: Improved the Color Button plugin which will now normalize the CSS background property if it only contains a color value. This fixes missing background colors when using Paste from Word.
• #16600: [Blink, WebKit] Fixed: Error thrown occasionally by an uninitialized editable for multiple CKEditor instances on the same page.

New Features:

• #14569: Added a new, flat, default CKEditor skin called Moono-Lisa. Refreshed default colors available in the Color Button plugin (Text Color and Background Color feature).
• #14707: Added a new Copy Formatting feature to enable easy copying of styles between your document parts.
• Introduced the completely rewritten Paste from Word plugin:
  • Backward incompatibility: The config.pasteFromWordRemoveFontStyles option now defaults to false. This option will be deprecated in the future. Use Advanced Content Filter to replicate the effect of setting it to true.
  • Backward incompatibility: The config.pasteFromWordNumberedHeadingToList and config.pasteFromWordRemoveStyles options were dropped and no longer have any effect on pasted content.
  • Major improvements in preservation of list numbering, styling and indentation (nested lists with multiple levels).
  • Major improvements in document structure parsing that fix plenty of issues with distorted or missing content after paste.
• Added new translation: Occitan. Thanks to Cédric Valmary!
• #10015: Keyboard shortcuts (relevant to the operating system in use) will now be displayed in tooltips and context menus.
• #13794: The Upload Image feature now uses uploaded.width/height if set.
• #12541: Added the Upload File plugin that lets you upload a file by drag&dropping it into the editor content.
• #14449: Introduced the Balloon Panel plugin that lets you create stylish floating UI elements for the editor.
• #12077: Added support for the HTML5 download attribute in link (<a>) elements. Selecting the "Force Download" checkbox in the Link dialog will cause the linked file to be downloaded automatically. Thanks to sbusse!
• #13518: Introduced the additionalRequestParameters property for file uploads to make it possible to send additional information about the uploaded file to the server.
• #14889: Added the config.image2_altRequired option for the Enhanced Image plugin to allow making alternative text a mandatory field. Thanks to Andrey Fedoseev!

Fixed Issues:

• #9991: Fixed: Paste from Word should only normalize input data.
• #7209: Fixed: Lists with 3 levels not pasted from Word correctly.
• #14335: Fixed: Pasting a numbered list starting with a value different from "1" from Microsoft Word does not work correctly.
• #14542: Fixed: Copying a numbered list from Microsoft Word does not preserve list formatting.
• #14544: Fixed: Copying a nested list from Microsoft Word results in an empty list.
• #14660: Fixed: Pasting text from Word breaks the styling in some cases.
• #14867: [Firefox] Fixed: Text gets stripped when pasting content from Word.
• #2507: Fixed: Paste from Word does not detect pasting a part of a paragraph.
• #3336: Fixed: Extra blank row added on top of the content pasted from Word.
• #6115: Fixed: When Right-to-Left text direction is applied to a table pasted from Word, borders are missing on one side.
• #6342: Fixed: Paste from Word filters out a basic text style when it is configured to use attributes.
• #6457: [IE] Fixed: Pasting from Word is extremely slow.
• #6789: Fixed: The mso-list: ignore style is not handled properly when pasting from Word.
• #7262: Fixed: Lists in preformatted body disappear when pasting from Word.
• #7662: [Opera] Fixed: Extra empty number/bullet shown in the editor body when editing a multi-level list pasted from Word.
• #7807: Fixed: Last item in a list not converted to a <li> element after pasting from Word.
• #7950: [IE] Fixed: Content from Word pasted differently than in other browsers.
• #7982: Fixed: Multi-level lists get split into smaller ones when pasting from Word.
• #8231: [WebKit, Opera] Fixed: Paste from Word inserts empty paragraphs.
• #8266: Fixed: Paste from Word inserts a blank line at the top.
• #8341, #7646: Fixed: Faulty removal of empty <span> elements in Paste from Word content cleanup breaking content formatting.
• #8754: [Firefox] Fixed: Incorrect pasting of multiple nested lists in Paste from Word.
• #8983: Fixed: Alignment lost when pasting from Word with config.enterMode set to CKEDITOR.ENTER_BR.
• #9331: [IE] Fixed: Pasting text from Word creates a simple Caesar cipher.
• #9422: Fixed: Paste from Word leaves an unwanted color:windowtext style.
• #10011: [IE9-10] Fixed: config.pasteFromWordRemoveFontStyles is ignored under certain conditions.
• #10643: Fixed: Differences between using Ctrl+V and pasting from the Paste from Word dialog.
• #10784: Fixed: Lines missing when pasting from Word.
• #11294: [IE10] Fixed: Font size is not preserved when pasting from Word.
• #11627: Fixed: Missing words when pasting from Word.
• #12784: Fixed: Bulleted list with custom bullets gets changed to a numbered list when pasting from Word.
• #13174: Fixed: Data loss after pasting from Word.
• #13828: Fixed: Widget classes should be added to the wrapper rather than the widget element.
• #13829: Fixed: No class in Widget wrapper to identify the widget type.
• #13519: Server response received when uploading files should be more flexible.

Other Changes:

• Updated SCAYT (Spell Check As You Type) and WebSpellChecker plugins:
  • Support for the new default Moono-Lisa skin.
  • #121: Fixed: Basic Styles do not work when SCAYT is enabled.
  • #125: Fixed: Inline styles are not continued when writing multiple lines of styled text with SCAYT enabled.
  • #127: Fixed: Uncaught TypeError after enabling SCAYT in the CKEditor <div> element.
  • #128: Fixed: Error thrown after enabling SCAYT caused by conflicts with RequireJS.