From the CHANGE_LOG file:
v1.620 July 17, 2023
New URL parameter "1hz" increasing frequency resolution to 1 Hz if Kiwi configured for 10 Hz.
Example: kiwi_name:8073/?1hz kiwi_name:8073/?...&1hz
Camping-mode panel now shows a message when:
The channel user has tuned to a masked frequency and the camper does not have masked
listening privileges (i.e. "pwd=(time-limit-password)" not given).
The channel user disconnects.