Telegram v 5.1.0 has amazing new features that would make you want to stop using Whatsapp and jump on the Telegram bandwagon already. This latest version allows users to revoke messages and also to playback media at a faster speed.

Telegram has also made it possible for you to pin any poll you create so to get better reach and visibility to people. However, these polls are still anonymous for the time being, which means you can't see users who participated in the vote

Source: https://www.browsetechs.com.ng/2018/12/new-update-telegram-510-features-tools.html?m=1