SMTP Email Completely Broken After Upgrading to 9.5.0

Installation
2

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