New Release: WordPress 4.9.8

This notice relates to the following platforms: WordPress.com VIP, VIP Go

WordPress 4.9.8, a maintenance release, was deployed today. All sites across WordPress.com and VIP Go have been upgraded.

This release contains 46 fixes and several small enhancements, including:

  • TinyMCE: Updated to v4.7.13
  • Privacy: The type of request being confirmed is now included in the subject line for all privacy confirmation emails.
  • Performance: Extreme memory leak related to wp_is_stream in wp-includes/functions.php in WordPress 4.9.7
  • REST API: Attachments controller should respect “Max upload file size” and “Site upload space” in multisite
  • REST API: Only render fields specific to request when _fields= is used
  • REST API: Expose revision count and last revision ID on Post response
  • Meta: the register_meta() function supports registration of metadata not only for an entire object type (posts, terms, comments, users), but also for a specific object subtype (such as a specific post type or taxonomy).

Please note that the “Try Gutenberg” banner will not be shown on either WordPress.com or VIP Go.

More information about this release can be found in the official announcement post and the update guide.