See the full changelog for all versions at:
https://github.com/krathalan/wtwitch/blob/master/FULLCHANGELOG

2.6.2 (May 03, 2023)
    Fix issue #21 (subscribing to a substring of an already subscribed channel fails)
    Attempt a fix for issue #20 (commands fail when the Twitch API returns a 401 "Invalid OAuth Token")