SMTP Email Completely Broken After Upgrading to 9.5.0

concreteCMS 9.5.0 may have bugs.

Although the symptoms are different from yours, most sites are experiencing problems after updating from version 9.4.8, which was working correctly.

【emergency】[URGENT] Is this a bug? After updating ConcreteCMS 9.4.8 to 9.5.0, I can no longer add calendars - Using Concrete / Help - Concrete CMS