CategoryRenameAuto-Update can be used to "rename" categories by moving the category's page to a new name and auto-migrating all pages within that category to the new one, updating every instance of that category's link across the entire wiki. The script adds a 'Rename' button to the 'Edit' drop-down on any category page, which will redirect to the category-renaming form. It is strongly recommended to have a bot flag when using this script, as it can spam the Wiki Activity. This script works best when used as a Gadget, but can still be used in personal or wiki-wide JS regardless.
This is a maintenance script that involves renaming categories. This script is considered semi-automated editing. Do not use this script without first reviewing your wiki's policies regarding automated editing and obtaining necessary approvals and/or user rights.
To add translations, add your language code to the supported languages in MediaWiki:CategoryRenameAuto-update/code.js and make a sub-page of this page named after your language code: ex. MediaWiki:CategoryRenameAuto-update/en.js.