Overview

Admin include file from WordPress core. This doc summarizes the public-facing classes and functions developers typically interact with.

Classes

• WP_Upgrader — Upgrade API: WP_Upgrader class

Developer Usage

WP_Upgrader powers core/plugin/theme upgrade workflows. Use the specialized subclasses (Plugin_Upgrader, Theme_Upgrader, Core_Upgrader, Language_Pack_Upgrader) rather than instantiating this base class directly.