The WhatsAppp Messenger for Symbian has been updated to version 2.10.1352 which presumably brings some bug fixes and performance improvements. WhatsApp Messenger is a cross-platform smartphone messaging app which allows you to exchange messaging with your contacts without having to pay for SMS, by utilizing the existing smartphone data connection (or Wi-Fi when available).You can download the update by using the following link:
The developer hasn't shared a change-log with this release, so feel free to share anything new you come across in the following comments area.