wp-includes/class-wp-block-list.php:132Unset a block.
$offsetstring #[ReturnTypeWillChange] public function offsetUnset( $offset ) { unset( $this->blocks[ $offset ] ); }Introduced in 5.5.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$offset retyped from string to int.verified against sourcesrc/wp-includes/class-wp-block-list.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.