Comment # 2 on bug 1193516 from Xu Zhao

(In reply to Hillwood Yang from comment #0)
> Created attachment 854394 [details]
> 2.5.8
> 
> The Telegram-desktop popups a warning "Please update you app to the latest
> version. The version you are using is out of data and will not no longer
> work. " It should be updated for Leap.

Also, I am against the idea of reverting telegram-desktop to some old version
the runs on both Leap and TW, this means TW users will have to actually
downgrade. And it is not clear whether that version will also be deprecated by
telegram official in the future (e.g. the lifetime of Leap 15.4).