Hurray to all HTC Desire HD/HTC Desire Z users!
HTC Desire HD & HTC Desire Z will be upgraded to Android 2.3 (Gingerbread) via an Over The Air (OTA) Update.
Your phone will receive a notification of OTA update when it is available.
Simply press OK to accept the update via a data connection such as Wi-Fi or GPRS/3G.
After installing the update, you can confirm a successful update by confirming the Build number (From the Home Screen go to MENU> Settings> About Phone> Software Information> Build number).
The new Build number after the update will be
HTC Desire HD – 1.84.707.2
HTC Desire Z -1.82.707.1
Update: Improve system performance and Camera feature enhancements.
Please note to back up your data first before upgrading your phone.