WordPress 4.1 Beta 1

Welcome, everyone, to WordPress 4.1 Beta 1!

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 4.1, try the WordPress Beta Tester plugin (you’ll want “bleeding edge nightlies”). Or you can download the beta here (zip).

WordPress 4.1 is due for release next month, so we need your help with testing. Here are some highlights of what to test:

• Our beautiful new default theme, Twenty Fifteen. It’s a clean, mobile-first, blog-focused theme designed through simplicity.
• A new distraction-free writing mode for the editor. It’s enabled by default for beta, and we’d love feedback on it.
• The ability to automatically install new language packs right from the General Settings screen (available as long as your site’s filesystem is writable).
• A new inline formatting toolbar for images embedded into posts.

There have been a lot of changes for developers to test as well:

• Improvements to meta, date, comment, and taxonomy queries, including complex (nested, multiple relation) queries; and querying comment types (#12668).
• A single term shared across multiple taxonomies is now split into two when updated. For more, see this post, #5809, and #30335.
• A new and better way for themes to handle title tags.
• Several improvements to the Customizer API, including contextual panels and sections, and JavaScript templates for controls.

If you want a more in-depth view of what changes have made it into 4.1, check out the weekly review posts on the main development blog.

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 the WordPress Trac. There, you can also find a list of known bugs and everything we’ve fixed so far.

Happy testing!

Twenty Fifteen theme
The beautiful face which hides
Many improvements