Definition: "ChangeLog.php" is a text file typically used in WordPress for setting up plugin changelog entries, which are commonly displayed on the website after a plugin has been installed or modified. The file contains information about any changes made to a specific theme or page. The "CHANGELOG.php" definition refers to the "Changes Log", also known as "Update Logs". This is a text-only log of changes made in the WordPress database, showing which pages have undergone updates, including new content added, removed, and modified. It's often used by developers to document changes they made to themes or plugins. The file can contain different types of information for each page or theme, such as "Plugin Updates", "Theme Changes", "Content Changes", "Installation and Uninstallation", etc., depending on the plugin or theme being updated.