When it was about the 7th incubator iteration, I got curious so I read the actual JEP history, and it had this informative tidbit, also included in the latest release:
"The Vector API will incubate until necessary features of Project Valhalla become available as preview features. At that time, we will adapt the Vector API and its implementation to use them and then promote the Vector API from incubation to preview."
Project Valhalla has been "in progress" for at least a decade now (Wikipedia say 2014). So who knows when we'll actually see a Vector API in preview.
alt Hacker News
When it was about the 7th incubator iteration, I got curious so I read the actual JEP history, and it had this informative tidbit, also included in the latest release:
"The Vector API will incubate until necessary features of Project Valhalla become available as preview features. At that time, we will adapt the Vector API and its implementation to use them and then promote the Vector API from incubation to preview."
Project Valhalla has been "in progress" for at least a decade now (Wikipedia say 2014). So who knows when we'll actually see a Vector API in preview.