HTC Desire HD and Desire Z are getting an OTA update to improve system performance and provide camera feature enhancements. The update build no. 1.84.720.3 [Desire HD], 1.82.720.1 [Desire Z] are rolling out now to the users.
Your phone will receive a notification of FOTA update when it is made available. Simply press OK to accept the update via a data connection such as Wi-Fi or GPRS/3G.
Related Links: HTC Support

Updated it yesterday. The animations seem to be even more smoother.
I haven’t got any updates yet.
HTC DESIRE HD
@Kundan Are you sure?? I didn’t receive any update for my Desire HD!!
Got more smooth and colourful screen. new facebook application..sound is more loud. thanks HTC
I updated it yesterday night, after the reboot the touch screen is not responding!! Even went to recovery mode and did a factory reset, still not working :((
To force update in Desire HD
Go to Settings > About Phone > System Software Update
Checked for it manually, it was there..
Animations definitely seems smooth but overall not much has changed. Even camera is the same as previous.
What is the threat to my personal data with an OTA update? Even HTC recommends backing up. So what exactly are we talking about? Contacts. Smses, pics, music, everything?
Hi Guys! I am still not seeing the update even after trying to update manually… It says my phone is up to date…
Is it because I bought the phone in the UK?? Any ideas??
updated successfully …….the mobile poped up an automatic message saying that system update is available…..camera gets focused quicker than earlier….youtube and facebook has also been changed(better)….and screen got more sharper and brighter…
wat abt 2.3 for hTC desire z
dont lie guys ,update is not in the air yet ,it takes a month atleast for it to arrive