wp-includes/class-wp-block-supports.php:99Registers a block support.
$block_support_namestring$block_support_configarrayvoid public function register( $block_support_name, $block_support_config ) { $this->block_supports[ $block_support_name ] = array_merge( $block_support_config, array( 'name' => $block_support_name ) ); }Introduced in 5.6.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
none to void.verified against sourcesrc/wp-includes/class-wp-block-supports.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.