Hello,
We have switched to headless chromium pre-rendering on the primary cluster. PhantomJS has been deprecated. Latest version of both layout and V8 engine are being utilized for much more accurate and faster SPA pre-rendering.
We will continue to automatically upgrade chromium versions whenever new version is released to ensure latest layout and V8 engine are being utilized. Your website has been automatically upgraded to use this new pre-rendering engine and there is nothing you need to do.
PhantomJS has worked well over the years, but it was time to say goodbye to it and deprecate it as we found certain issues with pre-rendering content by using it. Headless chromium pre-rendering approach will remain our preferred choice for the foreseeable future.
If you have any questions or concerns please let us know by contacting us.
Thank you.