2. Use WP Safe Updates to Test Plugin Updates.
Because of the myriad combinations of designers, version compatibilities, and quality control, plugins are frequently the source of update conflicts.
Luckily, developer Antti Kuosmanen has actually created a new plugin called WP Safe Upgrades that lets you test plugin updates in a 'sandbox' environment. This allows you to identify prospective update disputes before they have the opportunity to be a concern on your live website.
In practice, WP Safe Updates includes a new Test Update button that appears when a plugin upgrade is offered. Clicking this button lets you preview any changes the plugin makes before dedicating to them.