Cryptocurrency donations for bots, groups and channels
Show a button for sending quick donations to maintainers of bots, groups or channels using cryptocurrency. This could use either an established cryptocurrency like Bitcoin, Etherium, EOS, etc. – or some…
But I think it's a nice default to rescale and recompress images so they don't take much space.
Its changelog at https://github.com/telegramdesktop/tdesktop/releases/tag/v3.5.6 says “Always try to save original photo bytes to disk”.
Telegram Desktop no longer recompresses a JPEG file before sending if the following four rules are obeyed by that JPEG:
① JPEG format is progressive,
② JPEG's width is 1280 pixels or less,
③ JPEG's height is 1280 pixels or less,
④ JPEG's filesize is 4 bits (or less) per average pixel.
Such JPEG files are nevertheless recompressed (JPEG-to-JPEG), but only once (on the server side).