Uppercase acronyms pluralise with uppercase “S” (e.g. "CD" → "CDS") instead of lowercase “s”. (CDs)

Laravel Version

10.48.29

PHP Version

8.3

Database Driver & Version

NA

Description

Illuminate\Support\Pluralizer pluralises all-uppercase words by appending an uppercase S, producing incorrect results.

Examples:

use Illuminate\Support\Pluralizer;
echo Pluralizer::plural('CD');   // outputs "CDS" (wrong, should be CDs)
echo Pluralizer::plural('DVD');  // outputs "DVDS" (wrong, should be DVDs)

Why this is a bug: • Standard English usage pluralises acronyms with a lowercase s. • Examples in common dictionaries and style guides: CDs, DVDs, URLs, not CDS, DVDS, URLS. • The current behaviour produces grammatically incorrect results in real-world applications.

Steps To Reproduce

use Illuminate\Support\Pluralizer;
echo Pluralizer::plural('CD');  // outputs "CDS" (wrong, should be CDs)