WhatsApp gives more importance to the name you choose and adds a shortcut to free up space in its beta
The first one of her changes how WhatsApp shows the name we choose to those people who do not have us saved in their contacts. The second is a shortcut that reminds us that temporary chats are a useful tool to free up space.
For many years, the WhatsApp application seemed stagnant, but it is undeniable that Meta engineers have stepped on the accelerator lately. Nowto arrive that are already in testing in its beta version for Android The first one of her changesto those people who do not have us saved in their contacts. The second is a shortcut that reminds us that temporary chats are a useful tool to free up space.
Your name, big
When we register in WhatsApp we can choose a name, but the truth is that the application hardly uses it at all. Those who chat with us see in the app the name with which they have saved us in their contactsand those who do not have us in contacts will see our phone number (and the name we choose, in small, in our profile).
The exception is groups. In groups, our messages appear signed by our phone number and the name we have chosen for those people who do not have us in their contacts, but the truth is that our name appears small and what is most visible is the telephone number. 
Before: the telephone number in large and the name in small. Now: the small number and the big name. Picture of WaBetaInfo
This is already changing in WhatsApp Beta for Android. Someone must have realized that having a string of digits as the sender of a message does not contribute much, so the data has been exchanged: the messages from those you do not have in the calendar appear signed by the name they chose when registering on WhatsApp, for example, ~manoletewith the phone number still visible, but tiny and gray.
Basically, this will help us to know better who says what, something fundamental as well as the function of communities is extended and with it increases the possibility of coinciding in groups with people you don’t have in your contact list.
Free up space based on temporary chats 
Another novelty present in WhatsApp Beta for Android, and which seems quite widespread among users, is related to free up storage space. When we have little free space on our mobile, we will see a notice inviting us to activate temporary chats to free up space. With temporary chats, messages are deleted after a certain time (for example, a day or a week), so we can scratch a few extra megabytes of storage in exchange for losing our chat history.
The shortcut simply takes you to the WhatsApp temporary message options, and you will also find it within the section of storage management from WhatsApp, under Tools to free up spaceeven though you still have plenty of space available.
Via | WaBetaInfo