WhatsApp has started rolling out a rather nifty update for its official Android client via the Play Store. The upgrade brings users rich previews for links compatibility, support for Direct Share (Marshmallow only) and the heavily-requested facility to star important messages, which can be retrieved at a later date via a dedicated menu.
The full changelog can be seen below:

• Starred messages: Now you can tap and hold on any message in a chat to star it so you can easily find it later (works like a bookmark). You can browse starred messages from the Chats tab > Menu > Starred Messages.
• Links that you share or receive will now include a rich preview. When sending a link, you have the option to not include a rich preview.
• Support for Android direct share, which lets you quickly choose a specific chat when sharing content from other apps (Android 6.0+).