This is a maintenance update to fix a few bugs and issues reported or discovered since the last update.
Users of SP PageBuilder Pro 3.8.7 who are seeing issues when creating content with JCE Pro that were not present in SP Page Builder Pro 3.8.6 should download and install SP Page Builder Pro 3.8.7 again. It appears that the bug has been fixed, but not released in a new version, but rather in a re-release of SP PageBuilder Pro 3.8.7
A changelog for this release is available to view here
Download and Installation
Instructions for installing and updating JCE for each Joomla version are available here