[100ms]

Why is it half dead? They only jettisoned the ancient support library, the compiler itself AFAIK remains best in class and has commits on GitHub as of 15 hours ago

[fg137]

Something as important as https://github.com/google/closure-compiler/issues/2731 that is in ES2022 standard (Yes, released near 4 years ago) is still not implemented. Lots of new code don't compile with it.

It has become a liability in the build process and people are getting rid of it.