2 options:
- Use a bot, for example, pywikibot and the category.py script
- Extension:Replace Text
2 options:
The dutch Nationaal Register Varende Monumenten got a new name: Register Varend Erfgoed Nederland. How can I transfer the categories in Category:Nationaal Register Varende Monumenten to the new Category:Register Varend Erfgoed Nederland without doing it by hand? Cat-a-Lot doesn't do the job. @Stunteltje
2 options:
If you can install Extension:Replace Text then that will take care of it without using a bot.