The current "bell" icon contains the admin monitors for security and non-security issues. The non-security issues could be a matter of performance, best practices, etc. but the security one could be dangerous for your instance.
The security ones should be an "error" and the non-security ones, a "warning".
|Field||Original Value||New Value|
|Remote Link||This issue links to "#5015 in core (Web Link)" [ 26109 ]|
|Status||Open [ 1 ]||In Progress [ 3 ]|
|Status||In Progress [ 3 ]||In Review [ 10005 ]|
|Resolution||Fixed [ 1 ]|
|Status||In Review [ 10005 ]||Closed [ 6 ]|
|Released As||2.267||2.267 and 2.277.1|