HTC today updated its requirements for Android 4.1 Jelly Bean update. According to HTC now Devices having 512 MB of RAM will not get Android 4.1 Jelly Bean update. Here’s official statement from HTC:
What devices will not get Android 4.1?
We work hard to ensure each of our products has the optimal user experience and therefore some products will remain at their current version of Android. In general, devices with 512MB RAM or less will not be upgraded to Android 4.1. At present, these devices include the HTC One V and the HTC Desire C. As we identify other devices that will not be upgraded, we’ll provide updated information.
It should be noted that upgrades are not the same thing as ongoing support. Devices not being upgraded to Android 4.1 will still get software improvements, security fixes, and technical support.
Currently except HTC One X and One s no other device is picked for Jelly Bean update, HTC is reviewing their protfolio so need to wait for update. HTC also added that Android 4.1 update will also contain Sense 4.0+ and update is delaying as HTC want to provide a high standard of quality for hardware compatibility, adapting device or carrier specific customizations, testing by HTC and partners, addressing device hardware constraints, and many other factors.