Are up-to-date Rails applications exposed to this issue?<p>Not 100% sure, but from what I know, Rails gets timezone handling right. Specifically, it leverages the <a href="https:&#x2F;&#x2F;github.com&#x2F;tzinfo&#x2F;tzinfo" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;tzinfo&#x2F;tzinfo</a> gem. So, correct me if I wrong, by performing `bundle update` you&#x27;re all good?