From a reporter on Twitter:
Nerdy question but genuinely curious:
All fights into Kabul would previously approach from the east, flying towards the direction of Nangarhar, then making a U-turn over the Surobi basin, then descending westwards into Kabul. Now they seem to all approach via Logar, meaning they descend south of Kabul,then making a smaller left-turn into the airport. It's much faster that way of course so that's great (Herat-Kabul flight time was 45 mins only compared to over 1h before).
Any particular reason for the switch in flight path? V curious!