From the CHANGE_LOG file:
v1.627,628 October 5, 2023
Rework of admin backup tab:
Now works for Debian 11 and later. Debian 11 is currently used by the BBAI-64.
Progress bar now accurately shows sd card copy progress.
Should now correctly abort backup if admin page is reloaded while backup running.
Changes to support KiwiSDR 2.
Fixed bug where audio wouldn't un-mute after underlying masked area removed (thanks Rob).
The SNR-measure task ARRIVED/LEAVING messages are no longer logged.