[wp-trac] [WordPress Trac] #14912: Introduce register_upgrade_hook()

[WordPress Trac]

#14912: Introduce register_upgrade_hook()
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 Reporter:  scribu           |       Owner:                
     Type:  enhancement      |      Status:  new           
 Priority:  normal           |   Milestone:  Future Release
Component:  Upgrade/Install  |     Version:                
 Severity:  normal           |    Keywords:  needs-patch   
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Comment(by ericmann):

 Replying to [comment:15 scribu]:
 > More observations on the patch:
 >
 >  * the callback should receive the previous version as a parameter
 >  * there's no point in using add_action() / do_action() in the same
 function

 Great suggestions; I've incorporated them both.  Though I'm still
 wondering how best to apply this patch to multisite/network-wide plugins.
 I want to keep things as consistent as possible, but without direct
 experience in site-wide options, I'm not quite sure where to begin ...

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Ticket URL: <http://core.trac.wordpress.org/ticket/14912#comment:16>
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