WordPress 4.0 Beta 2 is now available for download and testing. This is software still in development, so we don't recommend that you run it on a production site. To get the beta, try the WordPress Beta Tester plugin (you'll want "bleeding edge nightlies"). Or you can download the beta here (zip).
For more of what's new in version 4.0, check out the Beta 1 blog post. Some of the changes in Beta 2 include:
- Further refinements for the the plugin installation and media library experiences.
- Updated TinyMCE, which now includes better indentation for lists and the restoration of the color picker.
- Cookies are now tied to a session internally, so if you have trouble logging in, #20276 may be the culprit.
- Various bug fixes (there were nearly 170 changes since last week).
If you think you've found a bug, you can post to the Alpha/Beta area in the support forums. Or, if you're comfortable writing a bug report, file one on the WordPress Trac. There, you can also find a list of known bugs and everything we've fixed.