# v1.4.1
> If you have any issues with the plugin or want to request a feature, then please report it at the [DupePlus GitHub Repository Issue](https://github.com/meme20200/dupeplus/issues)
## Now doesn't break on 1.21.10 and 1.21.9
DupePlus now works on 1.21.10 and 1.21.9 without any known issues.
[@RenegadeActual's issue](https://github.com/meme20200/dupeplus/issues/6)
## Custom Commands Notice
If you changed the custom command for dupe and reloaded the configuration, then players must rejoin to see the changes.
## Improvement on blocklist
`/dupeplus blocklist`
DupePlus now has a Blocklist Menu, which allows you to add and remove items from the blocklist, and make an item undupeable. And turn off and on the whitelist/blacklist from the menu with ease.
## Make your item undupeable fast
`/dupeplus block`
Adds the dupenotallowed tag on your item.
(small fix)
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }
