WordPress at a glance
filter is not described

woocommerce_in_plugin_update_message filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_in_plugin_update_message', 'filter_function_name_3387' );
function filter_function_name_3387( $html ){
	// filter...

	return $html;
}
$html
-

Where the hook is called

WC_Plugins_Screen_Updates::in_plugin_update_message()
woocommerce_in_plugin_update_message
woocommerce/includes/admin/plugin-updates/class-wc-plugins-screen-updates.php 71
echo apply_filters( 'woocommerce_in_plugin_update_message', $this->upgrade_notice ? '</p>' . wp_kses_post( $this->upgrade_notice ) . '<p class="dummy">' : '' ); // phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped

Where in WP core the hook is used WooCommerce

Usage not found.