WordPress 4.9 Beta 3 is now available!
This software is still in development, so we don’t recommend you run it on a production site. Consider setting up a test site just to play with the new version. To test WordPress 4.9, try the WordPress Beta Tester plugin (you’ll want “bleeding edge nightlies”). Or you can download the beta here (zip).
For more information on what’s new in 4.9, check out the Beta 1 blog post. Since the Beta 1 release, we’ve made 70 changes in Beta 2 and 92 changes in Beta 3. A few of these newest changes to take note of in particular:
- The plugin/theme editors now show files in a scrollable expandable tree list. See #24048.
- Backwards compatibility has been improved for MediaElement.js, which is upgraded from 2.2 to 4.2. See #42189.
- When you create post stubs in the Customizer (such as for nav menu items, for the homepage or the posts page), if you then schedule your customized changes or save them as a draft, then these Customizer-created posts will appear in the admin as “Customization Drafts”; these drafts can be edited before your customized changes are published, at which time these posts (or pages) will also be automatically published. See #42220.
- Theme browsing and installation experience in the Customizer has seen some bugfixes (e.g. #42215 and #42212), with some known remaining issues outstanding in Safari.
- There is now a callout on the dashboard to install and activate Gutenberg. See #41316.
- Menus in the Customizer have seen additional usability improvements. See #36279 and #42114.
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If you think you’ve found a bug, you can post to the Alpha/Beta area in the support forums. We’d love to hear from you! If you’re comfortable writing a reproducible bug report, file one on WordPress Trac, where you can also find a list of known bugs.