[wp-trac] [WordPress Trac] #59074: "Deprecated" error since update to 6.3

[WordPress Trac]

#59074: "Deprecated" error since update to 6.3
--------------------------+------------------------------
 Reporter:  maxomatico    |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:  6.3
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
--------------------------+------------------------------

Comment (by maxomatico):

 Hey @poena, thanks for your help!

 I just tested Twenty Twenty-Three for a second and this seemed to do the
 trick, the error codes were now gone. I have since reactivated my current
 theme, Avada.

 I would like to hide these messages from customers, however I would prefer
 to get to the root of the problem. It seems like something is wrong with
 the website and just hiding these codes seems like a short-term solution.

 Might re-installing the current WordPress-version help here? This issue
 has only been present since the update to 6.3

 Replying to [comment:1 poena]:
 > Hi!
 > Can you provide any more information about how to reproduce this issue?
 > For example, does your website use the Duotone feature, and in what way,
 and is the feature working beside this notice?
 >
 > You mentioned that you disabled all plugins, which makes me think the
 issue may be with your theme. Are you able to test with a bundled theme
 (such as Twenty Twenty, Twenty Twenty-Three)?
 >
 > I can see the visible errors when visiting your website, if you are
 unsure of how to hide these messages from visitors, please see
 https://wordpress.org/documentation/article/debugging-in-wordpress/
 >

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/59074#comment:2>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform