The new version 0.10.16 brings you a nice audio player redesign. The new player can be minimized to a single play / pause button in the window title:

Also it contains a whole bunch of notifications improvements for Windows and Linux users:

— You can reply to the incoming messages right from the notification toast.
— You can change the toast location on your screen and the maximum count of toasts shown at the same time.

Here is the way a toast with a reply and the new settings box look like:

Plus Messenger 3.13.1.2 (8583) .apk

Telegram Desktop Alpha v0.10.17

— New cute control for adding members to your groups

#alpha #beta

We've refreshed Botfather's interface, adding two new commands: /mybots and /mygames. The new interface is based on inline buttons and will keep your chat with Botfather neat and tidy.

We're also adding status alerts for developers of popular bots today. If your bot is getting on the order of 300 requests per minute, Botfather will now contact you if it becomes less responsive than usually. (Make sure it's the real Botfather, look for the 'verified' badge).

Read more about status alerts:
https://core.telegram.org/bots#status-alerts

another copied from Telegram, feature on WhatsApp Beta 2.16.15.3

Telegram mark user's account with virtual VoIP/Phone Number as a SPAM. User won't be able send message to non mutual contacts.