Starting with Mastodon 3.5, we no longer try to auto-detect your posting language. It defaults to your interface language, unless overriden by setting it explicitly per-post in the API, or setting in Preferences -> Other.
And if you want to pop up in the Explore tab, make sure to opt-in to the Suggest account to others preference on the Edit profile page and set your posting language correctly.
@Gargron thank you
@Gargron maybe we should make using interface language a default while keep auto detection as an option as many Mastodon users( at least in my social circle) post in 2 or more languages. Esp. when sometimes he or she wants to communicate with some specific people in English and post in his native language usually.
@Gargron It seems that only the toots posted by people using the same Interface Language as you can show up in the Explore Tab. For example, if someone posted a Chinese toot using an English interface, only those who also use English interface can see that Chinese toot in the Explore Tab. It doesn't make much sense to me. Is it a bug or is it intentional?
@jess Explore tab shows you content in your interface language. This is not a bug.
