The new Silent Mode allows users to silence conversations and notifications. With it enabled, you won't be notified of new messages unless you open the app.
Another new feature is Vacation Mode, which you might want to use on your work groups while on vacation. When enabled you can silence and archive chats without them having to pop up again when a new message is received.
In addition to these two new modes, WhatsApp is reportedly adding Linked Accounts. The feature allows you to link other (social media) accounts to your WhatsApp account. Not surprisingly it is said to support at least Instagram but likely Facebook, and perhaps even other Facebook-owned and third party services.
This could allow status updates to be posted simultaneously to social media and WhatsApp.
There's no word on when the update would possibly land, so we'll just have to wait and see.
Source : https://www.afterdawn.com/news/article.cfm/2018/10/19/whatsapp-update-to-bring-silent-mode-vacation-mode-and-linked-accounts