Meta is constantly working on improving WhatsApp and testing new ideas, often using beta versions available through the Google Play Beta Program. These versions give users ideas about what features the WhatsApp application may have in the future.
WhatsApp beta version 2.23.13.11 was recently released through the Google Play Beta Program, and users who have acquired this version have noticed a new feature that allows them to choose how long pinned messages stay in chats and groups.
The update offers three options for timed message pinning: 24 hours, 7 days, and 30 days. Once this time is up, the message is automatically removed from pinned messages. Of course, users can remove the pin status at any time before the time expires.
There is no official date for the release of this feature, but WhatsApp may enable it at any time. If you are part of the beta program, you can start using the feature right away.