• require('domain') was deprecated 7.5 years ago

• modern code uses AbortController

• bug tracker activity suggests it's not in active use (or it works so well people never hit bugs⁰ - unlikely!)

• the supporting infrastructure for domain is a kind of technical debt that also has performance implications¹; it's not as bad as it used to be but it's still there

Proposal:

• remove it for good in the next major release

• leave a stub lib/domain.js that prints a warning, a la the sys module.

⁰ the prime reason for deprecation was because it was so buggy due to part poor design, part poor implementation

¹ at one time it was so bad that if even one module imported domain, whole-program performance tanked