[6.0] Remove use of deprecated dispatcher from the plugin constructor

[heelc29]

Summary of Changes

Same as #45644 for new plugin (fields note) of Joomla 6

Info: plugin fields number was fixed during upmerge commit f200a7d

Testing Instructions

Enable Log Deprecated API

Open view to add new custom field (/administrator/index.php?option=com_fields&view=field&layout=edit&context=com_content.article)

Check log file administrator\logs\deprecated.php

Actual result BEFORE applying this Pull Request

Log message
deprecated Passing an instance of Joomla\Event\DispatcherInterface to Joomla\CMS\Plugin\CMSPlugin::__construct() will not be supported in 7.0. Starting from 7.0 CMSPlugin class will no longer implement DispatcherAwareInterface. - [ROOT]\libraries\src\Plugin\CMSPlugin.php - Line 134

Expected result AFTER applying this Pull Request

No log message

Link to documentations

Please select:

• No documentation changes for docs.joomla.org needed
• No documentation changes for manual.joomla.org needed

[ceford]

I have tested this item 🔴 unsuccessfully on 3ba9fb2

Clearing the deprecated log before selecting New I get two instances like this on lines 11 and 57:

2026-01-14T09:38:09+00:00	WARNING	127.0.0.1	deprecated	Passing an instance of Joomla\Event\DispatcherInterface to Joomla\CMS\Plugin\CMSPlugin::__construct() will not be supported in 7.0. Starting from 7.0 CMSPlugin class will no longer implement DispatcherAwareInterface. - [ROOT]/libraries/src/Plugin/CMSPlugin.php - Line 134
...
2026-01-14T09:38:10+00:00	WARNING	127.0.0.1	deprecated	Passing an instance of Joomla\Event\DispatcherInterface to Joomla\CMS\Plugin\CMSPlugin::__construct() will not be supported in 7.0. Starting from 7.0 CMSPlugin class will no longer implement DispatcherAwareInterface. - [ROOT]/libraries/src/Plugin/CMSPlugin.php - Line 134

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[ceford]

I have not tested this item.

Looks like I made a mistake!

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/46682.}

[ceford]

I have tested this item ✅ successfully on 3ba9fb2

Looks like I made a mistake! Tested again and this time it works. I don't know what I did wrong the first time around.

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/46682.}

[tecpromotion]

Code review.

[tecpromotion]

I have tested this item ✅ successfully on 3ba9fb2

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/46682.}

[tecpromotion]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/46682.}

[Bodge-IT]

I have tested this item ✅ successfully on 3ba9fb2

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/46682.}

[brianteeman]

shouldnt this be for 6.1

[Bodge-IT]

@brianteeman #46683 for 6.1

[brianteeman]

@Bodge-IT my point was that this isnt a bug fix therefore it should be for 6.1 and not a patch release