spatie/laravel-sluggable 4.0.0 on PHP Packagist

v4 is mostly additive. Breaking changes are limited to minimum versions and a small handful of API removals. Full details in UPGRADING.md.

Highlights

#[Sluggable] attribute as a drop-in alternative to the HasSlug trait. Trait-based models keep working unchanged.
Self-healing URLs: route keys that combine the slug with the primary key (hello-world-5) so renaming a model never breaks an existing link. Stale URLs return a 308 (was 301) so PUT/PATCH/DELETE keep working.
Overridable actions: swap the slug generator or self-healing URL builder/parser via config/sluggable.php.
Laravel Boost skill bundled with the package for AI assistants.

Minimum PHP 8.3 and Laravel 12. spatie/laravel-translatable v6+ when using HasTranslatableSlug. Pest 4 / Testbench 10+ in your test suite.
skipGenerateWhen() is now evaluated on every save instead of once. The SlugOptions::\$skipGenerate boolean is gone in favor of \$skipGenerateWhen.
The closure-shaped options (generateSlugsFrom, extraScope, usingSuffixGenerator, skipGenerateWhen) are typed as Closure. Array/string callables need wrapping in a fn.
HasSlug no longer keeps a protected \$slugOptions cache; override generateSlugAction() to inject custom behavior instead.
Self-healing redirects default to 308 Permanent Redirect.
The Sluggable facade was renamed to SelfHealing.

See UPGRADING.md for migration steps.