There have been a number of vulnerabilities in Webkit since that last update. <a href="https:&#x2F;&#x2F;web.nvd.nist.gov&#x2F;view&#x2F;vuln&#x2F;search-results?query=Webkit&amp;search_type=all&amp;cves=on" rel="nofollow">https:&#x2F;&#x2F;web.nvd.nist.gov&#x2F;view&#x2F;vuln&#x2F;search-results?query=Webk...</a><p>Maybe they don&#x27;t apply to Jetpack. Do you know if they have a bug tracker?