Chrome 64 has been in beta phase for the past six weeks, though it’s been in development since the end of October 2017. It’s the first release of the web browser to ship with security fixes to address the Meltdown and Spectre timing attacks. Google has detailed these patches earlier this month. The actual version released today is Google Chrome 64.0.3282.119, and it would appear to include a total of 53 security fixes for various components, including PDFium, Blink, WebAssembly, autofill, WebGL, DevTools, OmniBox, XSS Auditor, and WebUI. More details about these security fixes can be found in the release notes.