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Changes between Initial Version and Version 1 of Ticket #28511, comment 9

initial	v1
11	11	I have to implement this either way, but where I've seen references to it before I can't be the only one that needs it.
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	13	Edit: One thing I'd like to add, obviously any layout issues would be the responsibility of the developer writing a plugin or theme that takes advantage of the hook. As far as backwards compatibility, it seems any admin layout would continue to use some form of #wpwrap.
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