# Locale settings of app.yml

**URL:** https://meta.discourse.org/t/locale-settings-of-app-yml/350815
**Category:** Support
**Tags:** localization
**Created:** [February 6, 2025, 6:26am UTC](https://meta.discourse.org/t/locale-settings-of-app-yml/350815 "2025-02-06T06:26:39Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Jagster](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jagster/32/192154_2.png) [@Jagster](https://meta.discourse.org/u/Jagster)
#### Post date: [February 6, 2025, 6:26am UTC](https://meta.discourse.org/t/locale-settings-of-app-yml/350815/1 "2025-02-06T06:26:39Z")

</div>

Just relax, my forum is up and running. But I would like to learn.

Quite many is using something like this:

```plaintext
LANGUAGE = "en_US.UTF-8",
LC_ALL = "en_US.UTF-8",
LANG = "en_US.UTF-8"

```

Wouldn’t just `LC_ALL` be enough? That includes all other options, right?

Mine is Finnish and I’ve used only `LANGUAGE = "fi_FI.UTF-8"` and `LANG = "fi"`. Everything worked smoothly. But after recently happened failed upgrades I realized that small difference between mine and what others are using. So I changed app.yml and used all three variants in UTF-8 form.

I upgraided and that failed. Sure, I was told that `LANG = "fi_FI.UTF-8"` is not allowed, so I changed it back to `fi`, I deleted `LC_ALL` and everything was fixed.

Now I`m wondering why

- `LANG` affected when there was `LC_ALL` included
- `LANG = "fi_FI.UTF-8"` wasn’t allowed, but majority global forums apparently can use `LANG = "en_US.UTF-8"`