Telegram X is now available in Belarusian, Catalan and Polish languages.

No application update needed: Telegram X will simply suggest to switch to your language based on system settings. You can always change current language in Settings > Language.

Arabic, Persian and Hebrew are about to become available soon, but will require an application update needed by internal improvements. Stay tuned.

Help translating Telegram X to your language: https://translations.telegram.org/