There were some overall stability fixes, including these two which may or may not be related, but are good to have in any event:

v263 Button-illumination fixes; kernel built WITH frame-pointers.
v277 Lucky-Sevens Release: fixed (rare) Day-1 jiffies bug in Hijack.

I had tuner flakiness including lockups and reboots in older hijack versions, but have not had any in recent weeks and months.