With Telegram 4.8, uploaded videos can be streamed right within the Telegram app immediately, without having to fully download them first. A light grey strip is available below the video to show download progress to users. The updated Telegram for Android also comes with the Auto-Night mode that automatically switches to the dark version of the interface after nightfall or in low-light conditions.
The app will apparently identify the conditions by combining the data obtained from the ambient light sensor with the current time. You can activate the new experience by going to Settings > Theme > Auto-Night mode. Furthermore, an option to switch to Preferred Night Theme is also available to let you pick a theme when the Auto-Night mode is activated.
Additionally, the updated app has a dedicated ‘Logged in with Telegram’ section that lists all the websites you are logged in to via Telegram. You can download the new Telegram version by visiting Google Play.
Telegram said in a blog post that all the new features are coming to iOS as well, though no time frame was specified.