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Changes between Version 1 and Version 2 of Ticket #6148, comment 21

v1	v2
19	19	Switching to a single "Full Name" field would also affect the display_name. The current UI there offers combinations of the first_name, last_name, and nickname fields, but would be straightforward to update to only use the value from the "Full Name" field and let the user edit it. The other name related settings remain unchanged.
20	20
21		In the back-end the most backwards-compatible transition would be to save the full name in `first_name`. As `last_name` is optional this would ensure all uses of the user's "formal name" (as opposed to display_name or nickname) will continue to work. Alternatively the full name can be stored in new meta but in this case all themes and plugins would need updating.
	21	In the back-end the most backwards-compatible transition would be to save the full name in `first_name`. As `last_name` is optional this would ensure all uses of the user's "formal name" (as opposed to display_name or nickname) will continue to work. Alternatively the full name can be stored in new meta but in this case all themes and plugins that use the users "formal" name(s) would need updating.