You can upgrade your Wordpress plugin with 2 ways.
Upgrade plugin with One-Click:
In this you can easily upgrade your plugin automatically. For that you can follow below steps:
Login to Wordpress >> Navigate to update section >> Here you can upgrade your plugin after selecting it.
Enable automatic updates:
By default automatic plugin update is disabled in Wordpress, but if you want to enable it then you can add a filter in functions.php file.
Upgrade plugin with One-Click:
In this you can easily upgrade your plugin automatically. For that you can follow below steps:
Login to Wordpress >> Navigate to update section >> Here you can upgrade your plugin after selecting it.
Enable automatic updates:
By default automatic plugin update is disabled in Wordpress, but if you want to enable it then you can add a filter in functions.php file.
Code:
// Enable automatic updates for plugins
add_filter('auto_update_plugin', '__return_true');