HTC Android 5.0 Lollipop update timetable

The latest source suggests that HTC will indeed be
brining Lollipop to most of its new handsets and will
likely pack its new Eye Experience software in with
the update, although not all features will be available
on every device. The follow list might be subject to
change, as handsets are apparently still under
evaluation.
The HTC One (M7) and (M8) remain the first in
line for the update. GPE versions of the handsets
will receive an update in late November-
December, as expected, and Sense based versions
will see an update in January-February.
The January to March contains a host of HTC
devices. Lollipop should arrive for the Desire EYE,
One (M8) Dual SIM, One (M7) Dual SIM, One (E8),
One (E8) Dual SIM, and Butterfly 2 in this period.
HTC’s One Mini 2 and Desire 816 will follow later,
with an update expected in the March-April time
frame.
Lastly, the One Max, One Mini, and Butterfly S are
in line for Lollipop somewhere between March
and May next year.
Oddly, HTC’s newly announced 64-bit Desire 820
appears to be left off the list. This and HTC’s MediaTek
processor powered handsets are still under evaluation,
according to the source, and may or may not receive
an update.
Via : Android Authority