This KB article contains information about issues that occurred after the release of Symantec Endpoint Detection and Response (SEDR) 4.12.
Click the following link to view the 4.12 Release Notes:
https://techdocs.broadcom.com/content/dam/broadcom/techdocs/us/en/dita/symantec-security-software/endpoint-security-and-management/endpoint-detection-and-response/generated-pdfs/sedr_release_notes_412.pdf
There are currently no late-breaking issues.