In addition to new security features, today‘s update brings you rich link summaries. All links to tweets, Instagram photos and YouTube videos will now be beautifully rendered so that you’ll see what the link is all about before opening it.
Once you paste a URL to the message input field, Telegram will start analyzing the link and getting a preview for it. If you prefer to send a particular message without the preview, just tap the x to remove it.
Rich link previews are now shown for most websites.
Original post: telegram.org