Site design customization
You can now tinker with your site’s design and schedule those design changes to go live as you please. Also, WordPress 4.9 gives you a preview link you can send to your team and customers so that you can collect and integrate feedback before you schedule the changes to go live.
Widgets
in WordPress 4.9, you can now add a gallery via a widget.
Embed images, video, and audio directly into the Text widget along with your text, with a simple but useful Add Media button.
