Add 6522

Author: sofietoft

15/umbraco-cms/reference/language-variation.md

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+---
+description: Language variants allow you to have different variations of content based on the language culture. Learn how to use them in this section.
+---
+
 # Language Variation
 
 Language Variation allows you to have different variations of content based on a language culture. In the documentation there are other useful articles about the feature:

15/umbraco-cms/reference/security/custom-password-check.md

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+---
+description: You can specify your own logic to validate a username and password against a custom data store. Learn more about it in this section.
+---
+
 # Replacing the basic username/password check
 
 Having the ability to replace the logic to validate a username and password against a custom data store is important to some developers. Normally in ASP.Net Core Identity this would require you to override the `UmbracoBackOfficeUserManager.CheckPasswordAsync` implementation and then replace the `UmbracoBackOfficeUserManager` with your own class during startup. Since this is a common task we've made this process a lot easier with an interface called `IBackOfficeUserPasswordChecker`.