React 16 is included in the control panel, should you like to use it. We are now using it for Relationship fields and many of the filterable selection lists throughout the CP.

If any of your fieldtype settings need JavaScript to instantiate, there is a new callback to implement to ensure your fieldtype’s settings load correctly in the new channel manager:

FieldManager.on('fieldModalDisplay', function(modal) {
  // Do something where modal contains your fieldtype's settings form
});

There is a new fieldtype called Fluid for creating fluid content in an entry. Like Grid, your fieldtype must opt-in to accept the fluid_field content type via the accepts_content_type() method in your fieldtype. Supporting Fluid should be similar to Grid in that if your field is relatively simple and does not require its own table for storage, it should just work.

Speaking of which, if your fieldtype needs JavaScript to instantiate itself on the publish form AND is compatible with the new Fluid field type, there is a new callback to implement, similar to Grid. There are other JS callbacks available in the Fluid field docs.:

FluidField.on('fieldtype_short_name', 'add', function(row) {
  // Do something where row contains your fieldtype's publish markup
});

Added a keyword filter to the Filter service.

Added a newer, simpler way to implement the Spam module in your add-ons with an improved moderation, approval, and rejection API.

Spam module can now accept any third-party content types.

Added withFilterLink() to control panel Menu service to allow “View All” links with search boxes.

Added Member ID as new parameter to the member_process_reset_password extension hook.

Added a entry_submission_redirect hook to change the redirect URL after a member clicks Save on the publish form.

Added the following methods to Text Formatter:

• accentToAscii()
• attributeSafe()
• censor()
• convertToEntities()
• decrypt()
• encodeEETags()
• encrypt()
• formPrep()
• json()
• length()
• limitChars()
• replace()
• urlDecode()
• urlEncode()
• urlSlug()

Added the following methods to Number Formatter:

• currency()
• ordinal()
• spellout()

The Sidebar service supports Folder Lists without needing a Heading.