Original reported and posted here.
Up until today (3 July, 2023), the edit form on Wikipedia Android app still states that upon publishing, you agree to publish your contents under CC-BY-SA 3.0. (Wikimedia:Wikipedia-android-strings-edit save action license logged in and Wikimedia:Wikipedia-android-strings-edit save action license anon). The license has upgraded to CC-BY-SA 4.0, so a change is necessary.
Looks like the iOS app also needs to update its license. If we have any other Wikimedia app, we need to update that too.