Smart wire:key Behavior in Livewire v4

Livewire v4 enables smart_wire_keys by default to prevent issues with deeply nested components.

Configuration

// config/livewire.php
// Now defaults to true (was false in v3)
'smart_wire_keys' => true,

Important Note

You still need wire:key in loops!

@foreach($items as $item)
    
@endforeach

What Smart Keys Do

- Prevents DOM diffing issues
- Handles nested component updates
- Reduces unexpected behavior