This morning I started receiving a warning message from my regular cron job.
Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/customer/www/crm.coma.org/public_html/wp-content/uploads/civicrm/ext/org.cpehn.subscriptionhistory-master/subscriptionhistory.civix.php on line 149+
I haven't knowlingly changed anything or even used CiviCRM this morning. I don't suppose it matters much, but I'm curious. CiviCRM 5.35.1 WordPress 5.7.2.