It looks as if it fixes some annoying bugs:
https://github.com/nmap/npcap/blob/master/CHANGELOG.md
so if we haven't already updated the Wireshark Windows builds to include the 1.20 installer, we should do so.
Anybody who's been having problems - especially if they're the ones noted:
https://github.com/nmap/npcap/issues/122
"npcap no longer working. Can't set [Wi-Fi] channel"
https://github.com/nmap/npcap/issues/106
"blocks vmware network stack after wakeup"
https://github.com/nmap/npcap/issues/268
"BSoD crash when upgrading to Npcap 0.9996 or later"
might want to consider updating to 1.20.
