Change Log

• Bugfix: avoids a database error on installation when STRICT_TRANS_TABLES is present in the database's sql_mode setting.
  
• Bugfix: the duplicate link warner's extended warning box showed the same value for url2 in the "url as url2" message for a post even when "url" occurred multiple times in the post as different "url2"s.
  
• Bugfix: the invalidation ACP tool wasn't ignoring missing previewers.
  
• Improves support for PHP 8 and fixes various related issues.
  
• Adds missing Peekers to the plugin's settings (hides settings dependent on the value of other settings).
  
• Improves the code and comments in a variety of ways mostly invisible to end-users.