[wp-trac] [WordPress Trac] #33534: Activation hook doesn't get called with the new plugin update?

[WordPress Trac]

#33534: Activation hook doesn't get called with the new plugin update?
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 Reporter:  amonad           |      Owner:
     Type:  defect (bug)     |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Upgrade/Install  |    Version:  4.2.3
 Severity:  normal           |   Keywords:
  Focuses:                   |
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 With the new update mechanism, where the user can update the plugin from
 the plugin list screen itself. The activation hook doesn't seem to get
 triggered with this approach. Has this feature been deprecated because
 previously when the plugin was updated it used to follow these steps:

 1) Deactivate plugin
 2) Delete old plugin files
 3) Install new plugin files
 4) Activate the plugin.

 I'm asking this because I need to add some new features in the new version
 of the plugin and that feature needs to save some default parameters in
 the db. I'm putting this code in the activation code which gets called
 when the plugin is activated. It's not working this way. Is there a new
 way I should handle such things in future?

 Please help.

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Ticket URL: <https://core.trac.wordpress.org/ticket/33534>
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