Temporary QR Codes. Any user can quickly share their contact info with others by generating a QR code from the Settings page.
If you don’t have a username and hide your phone number from everyone, the QR codes you generate will be temporary – working for just a few minutes. Temporary QR codes never share your phone number, only your chosen name.
BY Telegram Tips
With the help of the Search Filters option, users can now filter search results by type. They can do that by using the new tabs: Media, Links, Files and others. Searches can be done based on the particular time period like by typing in the date or even “Yesterday”. If users type in the name of a person, group, channel or bot, an extra filter will be applied to the searches.
Telegram has no known backdoors and, even though it is come in for criticism for using proprietary encryption methods instead of open-source ones, those have yet to be compromised. While no messaging app can guarantee a 100% impermeable defense against determined attackers, Telegram is vulnerabilities are few and either theoretical or based on spoof files fooling users into actively enabling an attack.
Telegram Tips from hk