What is new in WordPress 4.2? It fixes many issues and adds some great new features to WordPress.
At this version of WordPress it is easier sharing via ‘Press This’. It was made to be easier and faster for you to share content to WordPress from other sources. WordPress 4.2 has support for new characters, including native Chinese, Japanese, and Korean characters, musical and mathematical symbols, and hieroglyphs. Also you can now use emojis anywhere on your WordPress site, what you could not do in last version of WordPress. Preview New Themes before it goes live- it is also one of new features.
WordPress has stepped up its support for embeds with with ability to embed content from Tumblr.com and Kickstarter just by pasting the link into the content editor.
WordPress 4.2 comes with some great improvements in the customizer. You can now switch themes directly from theme customizer and make changes.
This are the new features, witch you should try, and you can do it already now, because WordPress 4.2 is available for download, or can be updated via the WordPress dashboard.