WordPress at a glance
filter is not described

allow_dev_auto_core_updates filter-hook . WP 3.7.0

Filters whether to enable automatic core updates for development versions.

Usage

add_filter( 'allow_dev_auto_core_updates', 'filter_function_name_6751' );
function filter_function_name_6751( $upgrade_dev ){
	// filter...

	return $upgrade_dev;
}
$upgrade_dev(true/false)
Whether to enable automatic updates for development versions.

Where the hook is called

Core_Upgrader::should_update_to_version()
wp-admin/includes/class-core-upgrader.php 299
if ( ! apply_filters( 'allow_dev_auto_core_updates', $upgrade_dev ) )

Where the hook is used (in WP core)

Does not used.