Apple late Monday released a new version of its Safari browser to patch a record number of vulnerabilities, many of which could lead to code execution if a user visits a malicious website. Version 5.1.4 fixes more than 80 software flaws, which reportedly is the most ever plugged in a Safari upgrade. An update one year ago this month also saw a whopping number of bugs fixed. None of the vulnerabilities being corrected — most of which reside in browser engine WebKit — are being actively exploited.