This is the first I've actually heard of the name change... I used to use Varnish quite a bit, and had a decent grasp of VCL, for Drupal deployments. But I think Varnish 6 or 7 was when I started dropping off managing the caching layer as almost every project chose to offload caching to Cloudflare.

What's the deal with Antirez and PHK refusing to add TLS support?