Windows 10 build 16299

Release date: 09/26/2017

New Microsoft Edge features

New in Windows 10 build 16299

This is the stable release of the Windows 10 Fall Creators Update. You can see everything that’s new in our blog post, What’s new in Microsoft Edge in the Windows 10 Fall Creators Update.

New in Windows 10 build 16257

  • We’re giving Microsoft Edge a refreshed and more modern look in the browser frame, inspired by the Fluent Design System. The use of Acrylic material provides depth and transparency to the tab bar and other controls, and we’ve improved button animations to feel more responsive and delightful.
    Screen capture showing the Microsoft Edge title bar with tab previews open

  • We’ve adjusted the design of the address bar based on your feedback. Now even if the address bar isn’t in focus to start with when you click and drag the text it will remain under the cursor. Previously the text would shift as the “http://” appeared – this change will make it easier to quickly edit parts of the URL.

New in Windows 10 build 16251

  • We fixed an issue where text in the URL bar would move when URL bar received focus, which could make editing specific parts of a URL more difficult. Beginning with this build, the text under the cursor will remain the same when clicking on a URL.

New in Windows 10 build 16237

  • Read Aloud with word and line highlighting: You can now hear text from websites and PDFs out loud by right clicking on a selection and choosing “Read aloud.” This will read the selection and highlight the words and lines as they are read.

New in Windows 10 build 16232

Data persistence in Application Guard: Added support for Microsoft Edge data persistence while using Application Guard. Once enabled, data such as your favorites, cookies, and saved passwords will be persisted across Application Guard sessions. The persisted data will be not be shared or surfaced on the host, but it will be available for future Microsoft Edge in Application Guard sessions.

New in Windows 10 build 16226

New features in Microsoft Edge:

  • Giving you more control over closing tabs: We’ve updated Microsoft Edge to ensure the X in the tab band is always available to close a tab, even when a JavaScript (i.e. alert, prompt, etc.) dialog is showing within Microsoft Edge. Additionally, closing the Edge window always remains an available option. You can also access many browser capabilities (i.e. favorites bar, settings, etc.) while a dialog is showing.
  • Making it easier to move from another browser: Users can now migrate Cookies and Settings from Chrome to Microsoft Edge, which will make it easier for users to make the move to Microsoft Edge as their primary browser.

Improvements to EPUB reading:

  • Copy and Ask Cortana: Now, when you select your text, you can Copy and Ask Cortana in addition to adding notes, highlighting and underlining. Cortana can help you do a little research while you’re reading an EPUB book.
    Screen capture showing Ask Cortana in an EPUB document
  • Ink Notes: Got ink? Add a note and write or draw on it with your pen.
    Screen capture showing Ink Notes in an EPUB document
  • Books roamed across devices: Your books from the Windows Store are available on your Windows 10 devices, and your reading progress, bookmarks, and notes are kept in sync.

Improved Favorites experience:

  • New experience when saving new favorites: You can now view your favorites as a directory tree when you save new favorites, and collapse or expand folders from within the “Add to favorites” dialog. Just click the “Save in” folder list to get started!
    Screen capture showing the new Add to Favorites dialog
  • Edit URL for Favorites: You can now edit the URL of any favorite in the Favorites menu or the Favorites Bar. You can use this to update the location of a site that has moved, or to create Bookmarklets in the favorites bar.
    Screen capture showing the Edit URL context menu item
  • Favorite manageability for Enterprise: IT admins can now configure favorites via group policy and mobile device management, including the ability to define and lock pre-configured favorites in addition to the user’s favorites.

New in Windows 10 build 16215

Pin your favorite websites to the taskbar: Pinned sites are back! We heard your feedback, and are in this build you can now pin a website to the taskbar from Microsoft Edge! We’ll use the site’s icon to give you quick access to your favorite sites right from the taskbar. Simply select “Pin this page to the taskbar” from the settings menu in Microsoft Edge.

Screen capture showing websites pinned to the taskbar from Microsoft Edge.

Full screen mode (F11) in Microsoft Edge: This build introduces a new Full Screen experience in Microsoft Edge. Simply press F11 or choose the new Full Screen icon in the Settings menu to take your websites full-screen. You can exit Full Screen view by pressing F11 again, or by clicking the Restore icon in the top-right corner.

Screen capture showing the Full Screen button in the Microsoft Edge Hub

Annotate Books in Microsoft Edge: Annotate Books in Microsoft Edge: We’ve added the ability to annotate EPUB Books by highlighting in four colors, underlining, and adding comments. To get started, select some text, and choose an option from the menu.

Screen capture showing an annotated EPUB book in Microsoft Edge

Microsoft Edge PDF improvements: We’ve added more highlight colors and the option to Ask Cortana in PDFs in Microsoft Edge.

Other improvements:

  • Microsoft Edge’s splash page (seen when newly launched) so that the color transitions more smoothly to the Start and New Tab pages.
  • You will now be able to close the Microsoft Edge app directly using the close button, even when a JavaScript dialog is showing.
  • We’ve added an option to “Add tabs to favorites” from the right-click context menu on tabs. Using it will create a Favorites folder with all the sites open in tabs in the current window.
  • New tabs will now animate more smoothly onto the tab bar when opened and closed.
    We’ve improved session restore behavior so that when a multi-window Microsoft Edge session is restored by clicking on a link (for example, from an email), the window in focus at the end of restoration is the one containing the new link.

New in Windows 10 build 16188

PDF Improvements

  • PDF Form Filling: Added the ability to fill in PDF based forms in Microsoft Edge, save them and print them
  • PDF Annotations: The Web Note annotation feature now works in PDFs as well as web pages. You can use the “Make a Web Note” button on the top right of browser frame to invoke an annotations bar. Using different modes in the annotations bar, you can ink on the PDF, highlight text and erase your annotations. You can save the work onto the PDF file for later use. Screen capture showing the PDF annotation bar in Edge
  • Table of Contents : For PDF documents with a table of contents, you will now see a new button for the Table of Contents on the left of the PDF toolbar. Click on any heading in the side pane to navigate to that part of the document. Screen capture showing the ToC in Edge
  • Better viewing and navigation: Added controls to rotate PDF documents for better readability and switch from one-page to two-page layouts, or change between continuous and per-page scrolling, for a better navigation experience for longer documents. Screen capture showing PDF controls in Edge

Windows Defender Application Guard
Announced last September in the Microsoft Edge Blog, Windows Defender Application Guard for Microsoft Edge is now available in Windows Insider Previews for Enterprise users in the Fast Ring. Microsoft Edge running in Application Guard provides enterprises the maximum level of protection from malware and zero day attacks against Windows. We’ll have more to share about WDAG in Microsoft Edge soon on the Edge Dev Blog. Screen capture showing a WDAG tab in Edge

New in Windows 10 build 15063

This is the stable release for the Windows 10 Creators Update, which upgrades the web platform to EdgeHTML 15. Compare to build 14393 to see everything that has changed.

New web platform features

New in Windows 10 build 16299

This is the stable release of EdgeHTML 16. You can see everything that’s new in the Microsoft Edge Dev Guide for EdgeHTML 16.

New in Windows 10 build 16257

New in Windows 10 build 16251

  • Microsoft Edge will no longer re-scale sites when in Tablet Mode with narrow viewport width (such as in a snapped view or portrait orientation). This enables more natural behavior on modern responsive sites in tablet mode.
  • The about:flags menu has been cleaned up, removing experimental flags that are no longer necessary and simplifying the organization.

New in Windows 10 build 16241

  • WebAssembly is now enabled by default

New in Windows 10 build 16237

  • Unprefixed CSS Grid is now enabled by default
  • Platform version has been updated to EdgeHTML 16

New in Windows 10 build 16226

  • CSS Grid Layout: Added support for CSS Grid Layout (behind the “Enable unprefixed CSS Grid Layout support” flag)
  • High Resolution Time L3: Added support for High Resolution Time Level 3

New in Windows 10 build 16215

New platform features:

  • Added support for advanced Event Listeners (“once” and “passive”)
  • Added support for CSS object-fit/object-position
  • Added support for CSS position: sticky

New JavaScript features:

  • ES2017 Shared Memory and Atomics are now on by default (previously behind the Experimental JavaScript Features flag)

Developer Tools improvements:

  • In DOM Explorer, merged the Layout tab into the Computed tab
  • Added Ctrl-Shift-I as a supported shortcut to launch the developer tools.
  • Ancestor Event Listeners
    • Inspect event listeners for ancestor elements
    • Group by Event or Element to see a list of events or list of elements, with the most specific element events first
  • CSS At-Rules
    • Styles tab will now display @keyframes for related animations (read-only currently),
    • Styles tab will now show the @supports statement being met for the given CSS
    • Styles tab will now show css from an @media in its own section
  • Console improvements
    • Added custom input filter and improved overall filtering experience
    • The command line input is now in-line with the logs view. By pressing Shift + Enter, developers can now move to multi-line mode and submit their command with Enter.
    • Optimized logging experience:
      • Duplicate logs are now stacked
      • Sources are now right-aligned
      • Added background colors
      • Added custom CSS styling of logs
      • Content is now wrapped to fit nicely within the console viewport
    • Added support for the Console.table API to visualize data in a tabular layout
    • The Console now leverages features and characteristics of Monaco editor that powers VS Code. This provides syntax colorization and a faster, richer IntelliSense experience in command line input.

WebDriver Improvements:

  • WebDriver now supports launching Microsoft Edge in InPrivate mode with capability “InPrivate”: true

New in Windows 10 build 15205

  • Fixed an issue with Microsoft Edge where you might get into a bad state after opening a new Microsoft Edge windows and screen off with the JIT process suspended.

New in Windows 10 build 15063

  • Added support for CSS Custom Properties (aka CSS Variables)


New in Windows 10 build 16273

  • When using Find on Page, pressing F3 will now go to the next result. Shift+F3 will go to the previous result.
  • Scrollbars in Microsoft Edge will now be the correct size on secondary monitors where the DPI differs from the primary monitor.

New in Windows 10 build 16241

  • The Pin to Taskbar option is now grayed out for InPrivate sessions in Microsoft Edge. Websites pinned to the taskbar from an InPrivate session on a previous build will now open in a regular (non-InPrivate) Microsoft Edge session.

New in Windows 10 build 16184

  • Fixed an issue where pressing F12 while the Developer Tools are open and focused may not return focus to the tab F12 is opened against, and vice-versa.


New in Windows 10 build 16237

  • VBScript execution is now disabled by default in Internet Explorer 11

Learn more about this release on the Windows blog

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