WhatsApp beta version 2.18.109 listed the last time users were online with the timestamps - "89ESTERDAY" and "84ODAY". This feature is not available for iOS users because it is unlikely that users will delete anything from the internal file directory without access. The undownloaded files were stored on WhatsApp server for 30 days and once it were downloaded, WhatsApp immediately deleted it from its folder. Apart from new additions to the voice recordings, users will be able to read the size of a specific sticker pack before downloading them. At present, if users delete media including photos, GIFs, and videos from their phone they can not re-download the same on WhatsApp again. Due to a mysterious bug, the timestamp on the chat window of users is appearing with numbers.
An update to resolve an issue of "Day" bug that's affecting a handful of Android users using the WhatsApp beta version 2.18.109 has been released, reports WABetaInfo. However, it is important that we do not delete the message from WhatsApp otherwise it will be impossible to get it back.
In a related development, WhatsApp is testing a new feature which would allow users to customize the shape and size of the WhatsApp icon on the home screen. But now those files can be re-downloaded, thanks to the latest update. According to WABetaInfo, the Android version of the app lets you re-download deleted media files.
So, you can download a deleted file from the WhatsApp folder with the path sdcard/WhatsApp/ only if you have the message in the chat. It has chose to store all the messages and multimedia content on its server even if it is downloaded by the user. Facebook does claim that all media files are encrypted, so there is at least some solace to be found there. With media files received before 3 months, the feature doesn't seem to work as it user to request to the sender to send the media again in order to retrieve it.