From: https://github.com/stof/StofDoctrineExtensionsBundle

to: https://github.com/KnpLabs/DoctrineBehaviors

1. Timestampable ✔️

Rename trait:

Gedmo\Timestampable\Traits\Timestampable
↓
Knp\DoctrineBehaviors\Model\Timestampable\TimestampableTrait

• add interface: Knp\DoctrineBehaviors\Contract\Entity\TimestampableInterface

2. Sluggable ✔️

Replace annotated property with trait

Gedmo\Mapping\Annotation as Gedmo;

- /**
-     * @ORM\Column(type="string", unique=true)
-     * @Gedmo\Slug(fields={"name"})
-     * @var string
-     */
-    private $slug;

remove getSlug()/setSlug()

public function getSlug(): ?string
    {
        return $this->slug;
    }

public function setSlug(?string $slug): void
    {
        $this->slug = $slug;
    }

Add sluggable trait: Knp\DoctrineBehaviors\Model\Sluggable\SluggableTrait

from:

Gedmo\Slug(fields={"name"})

add

/**
 * @return string[]
 */
public function getSluggableFields(): array
{
    return ['name'];
}