Upgrades from 5 are USD 27.50, which is also discounted (I just upgraded).
All prices in USD:
Little Snitch $41.30 (normally $59)
Launch Bar $24.50 (normally $35)
Micro Snitch $2.79 (normally $3.99)
Preempting comments that it used to be better at 50% in previous years, but a discount is still a discount.
Bit stingy. Is 6 much better than 5? 5 still supports 15.1.1.