From the article:

In its latest update, instant messaging platform Telegram has introduced more privacy-focused features. Users can now prevent others from saving or sharing content in public groups or channels, post anonymously using their channels or groups instead of personal accounts, delete messages by date, and automatically get logged out of connected devices.

Telegram has given users more control of their digital footprint by allowing them to delete messages from any one-on-one chat by date, or date range.

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“Clearing history by date currently only works in one-on-one chats, but messages in any chat can be set to auto-delete one day, week, or month after sending,” the platform wrote in a blog.

This week’s update also allows creators to protect content on channels and groups so that it is only available to the intended audience. Administrators of groups and channels can protect content by restricting the ability to forward messages, which will also limit the ability to save the media content in posts and prevent screenshots.

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Telegram has added the ability to post anonymously using your channel’s name instead of your personal account.

You can use Telegram on multiple devices at the same time. On the Device menu on the mobile app, you can manage the connected devices. The new update added the ability to automatically log out of an inactive device after a specific amount of time.

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Disclaimer: I don't use this or similar apps so I have no personal knowledge, I'm posting the article just to pass the information on.