In MW 1.24 variable styles which is defined in includes/OutputPage.php has been changed from public to protected. Because of this there is now a problem with MW extension:wysiwyg where BeforePageDisplay hook is trying to use $out->styles variable (using function onBeforePageDisplay): result is fatal error and extension will not start.
So far workarounds which I have been able to find are change type of variable "styles" back to "public" in OutputPage.php of MW or comment out lines ~191-211 in CKeditor.body.php of wysiwg.
With my limited skills of PHP programming, I have been unsuccessful with my attempts to "extend" visibility of protected variable "styles" from OutputPage.php to wysiwyg. Is it possible to solve this in code of extension somehow?
For a similar case about styles, see T76461.
For a similar case about mCoreRights, see T76264.
For a similar case about mLinktags, see T76168.