... It looks as though the BETA channel has lagged behind the stable release one...
https://desktop.telegram.org/changelog#beta-version
By visiting their official GitHub repository,
https://github.com/telegramdesktop/tdesktop/releases
the latest stable release posted there is at version 1.8.11 (updated a mere two hours ago...)
That same version can be obtained by visiting the main site:
https://desktop.telegram.org/
At least on their GitHub repo,
https://github.com/telegramdesktop/tdesktop#supported-systems
suggests Windows XP as being still supported
Though not a Telegram user, I decided to conduct some tests here, on Vista SP2 32-bit; I fetched the "portable" 1.8.10 package from GitHub, it had no issues launching:
As you see, I, too, was greeted by the red header with the
warning, but the behaviour of the app itself contradicts that warning, as it's automatically downloading (in the background) the update to the newer version; once I click UPDATE TELEGRAM,
the app is restarted to latest version 1.8.11:
Are you saying this is no longer possible under XP?
In any case, if I choose to hide the red header here (by clicking the white X), this option is honoured and it isn't displayed anymore in future relaunches of the app...
Generally speaking, when still running XP or Vista, it's a dead certainty that currently working software will cease to function sometime in the near (or, hopefully, not so near) future; this will soon-ish become also true for Windows 7, though I suspect the deprecation of this very popular Win OS will come much slower compared to Vista and, to a lesser extent, XP...
OT:
I have British and Greek friends in the UK with whom I communicate frequently ; I was under the impression DAB broadcasts used as high a bitrate as 192kbps, but employing the less efficient audio codec MP2... Anyhow, FM analog broadcast in the UK is slated for the ax...
WRT Capital London: On occasion, I also like to listen to this commercial radio station (although I shouldn't really be listening from overseas... ); their public online stream is indeed abysmal, only HE-AACv1@48kbps (adequate, I guess, for mobile devices and poor laptop speakers); there's a higher quality - non public - stream of theirs at
http://media-ice.musicradio.com:80/CapitalMP3
This is in high contrast to BBC Radio streams which, if inside the UK, are offered as AAC LC@320kbps
Cheers