I remember that there are apps like TubeMate and KeepVid for YouTube downloads. STUbe might be similar, but the user is asking about "Box V4 TV." Maybe it's an Android box app with a TV interface. I should check if STUbe Box is a real app. A quick search shows that STUbe is a known YouTube downloader, but "STUbe Box V4 TV" might be a modified or alternative version. The user is probably referring to an app that allows streaming or downloading videos on Android TV boxes.
Irregularly. Since it's a hobby project, updates come every 3–6 months. Join Telegram groups for update alerts, but beware of spam. stube box v4 tv apk link
However, no official changelog exists. User reports from XDA Developers confirm that V4 works better on Android 11/12 devices compared to older builds. I remember that there are apps like TubeMate