Plugins for (manual) migration from v4
- Better Search Replace (https://wordpress.org/plugins/better-search-replace/)
- Add From Server (https://wordpress.org/plugins/add-from-server/)
- Insert PHP Code Snippet (https://de.wordpress.org/plugins/insert-php-code-snippet/)
Plugins for operations
- Annual Archive (https://wordpress.org/plugins/anual-archive/)
- Posts Order / Order Posts per Taxonomy (https://de.wordpress.org/plugins/category-custom-post-order/)
Required custom development
Tag_Cloud.php in WordPress 6.1.1 does not call a filter added by “widget_tag_cloud_args” as documented here .
Manual change still required in 6.7 (11/2024)
Manual change still required in 6.6.2 (09/2024)
Manual change still required in v6.4.x
Manual change still required in v6.5.x
Manual change still required in v6.3.1 – (09/1223) I’ve created a Ticket and a Patch https://core.trac.wordpress.org/ticket/59363
Manual change still required in v6.2.