In all fairness to the author, casually maintaining any major changes to V8 or Chrome for more than a month is borderline impossible. The whole codebase undergo

In all fairness to the author, casually maintaining any major changes to V8 or Chrome for more than a month is borderline impossible. The whole codebase undergoes massive churn on a release-to-release basis. There are projects like LibCEF that have the rug pulled out from under them every release or two because some major subsystem got completely overhauled. So, the difficulty of maintaining the v8 changes is kind of meaningless. The fact that it's possible at all is the interesting part!