[chasil]

Embedded applications on smaller systems are why.

The POSIX shell is common, from the largest supercomputer down to the smallest ARM.

I don't think that there will be any new developments covering that full scope.

[pjmlp]

Many embedded systems hardly have any shell, and even when they do, it isn't bash (which isn't POSIX anyway), rather a tiny subset with the basic tooling for maintenance.

[deafpolygon]

Embedded systems don't exclude PowerShell from being a replacement for POSIX shells. Maybe embedded systems should not strive to be POSIX.