WhatsApp is understood to have made some tweaking to the 'Delete for everyone' feature. As the users know, the feature is useful to revoke messages in case they were sent to a wrong contact/group or sent incorrectly. The latest tweak, which is explained below, is for the users who bypass the time limit on revoking messages.

WhatsApp’s latest beta version for Android has a modified recipient limit, says WABetaInfo. "If you delete a message for everyone, but the recipient won't receive the revoke request within 13h, 8m, 16s (maybe because the phone was off), the message will NOT be revoked. This is a protection against modded users that revoked messages sent weeks, months and years ago. You can still delete a message for everyone within 1h, 8m, 16s as long as the recipient will receive your revoke request within 13h, 8m, 16s," WABetaInfo says.

Users are reporting confusion regarding this unannounced change.