Apple Security Advisory 2015-10-21-2 - watchOS 2.0.1 is now available and addresses arbitrary code execution, heap buffer overflow, and various other vulnerabilities.
b5fed81d5b6693b68f892dc91bbaa73fd5b0465588a6086b31825b77a194c21c
Apple Security Advisory 2015-09-21-1 - watchOS 2 is now available and addresses unexpected application termination and interception issues.
cabb377a29411848af2fa92ccc7f4329097035584b9eec7ebf43de5900d30e88