The long-awaited update brings several enhancements to the 820 and 920, including better photo features and a glance screen.
Microsoft is starting to detail features coming in this summer's GDR2 update to the Windows Phone 8 operating system.
Specs surfaced online for a midrange HTC Windows Phone that could be known internally as the HTC Tiara.
HTC has another Jelly Bean blower on the way, this one with Facebook pre-installed.
Microsoft's well on the way to delivering the next major version of Windows Phone, with it set to arrive before Christmas.
HTC's next Windows Phone 8 device has leaked, but it's a distinctly mid-range affair.