What were you expecting to happen?

Only changing between gulp v4.0.2 and v5.0.0 (all other plugins stay the same and latest versions).

Issue is only really a problem for JavaScript files where the order of the files being concat is vital for plugins that depend on others - like jQuery needing to be first.

I am using ESM gulpfile, as required by latest gulp-autoprefixer v9.0.0 now.

Using the following to keep the order of input sources unsorted (mainly required for JavaScript dependencies).

What actually happened?

Works as expected for gulp v4.0.2 with "no-sort" option, however array is still sorted when using v5.0.0 with same option.

Please give us a sample of your gulpfile

return gulp.src(src, { "no-sort": true })
	.pipe(gulp_concat(file))
	.pipe....

In this case the src is an array of files similar to the following, and need to be concat in the same order:

const src = [
	"a.js",
	"b.js",
	"c.js",
	"d.js"
];

Only change needed to break is upgrading from gulp v4.0.2 to v5.0.0

Terminal output / screenshots

None

Please provide the following information:

• OS & version: Debian Linux bookworm (all latest updates)
• node version (run node -v): 20.11.0
• npm version (run npm -v): 10.5.1
• gulp version (run gulp -v): 5.0.0

Additional information

None