wp_credits

function wp_credits() {
	// Include an unmodified $wp_version.
	require ABSPATH . WPINC . '/version.php';

	$locale = get_user_locale();

	$results = get_site_transient( 'wordpress_credits_' . $locale );

	if ( ! is_array( $results )
		|| false !== strpos( $wp_version, '-' )
		|| ( isset( $results['data']['version'] ) && strpos( $wp_version, $results['data']['version'] ) !== 0 )
	) {
		$url     = "http://api.wordpress.org/core/credits/1.1/?version={$wp_version}&locale={$locale}";
		$options = array( 'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ) );

		if ( wp_http_supports( array( 'ssl' ) ) ) {
			$url = set_url_scheme( $url, 'https' );
		}

		$response = wp_remote_get( $url, $options );

		if ( is_wp_error( $response ) || 200 != wp_remote_retrieve_response_code( $response ) ) {
			return false;
		}

		$results = json_decode( wp_remote_retrieve_body( $response ), true );

		if ( ! is_array( $results ) ) {
			return false;
		}

		set_site_transient( 'wordpress_credits_' . $locale, $results, DAY_IN_SECONDS );
	}

	return $results;
}