Lightmorphic Flow 0.6.7
Pre-releaseBeta. Two real faults, both of them mine, and both of them the reason two machines could sit side by side and find nothing.
The broadcast address was guessed
Flow worked out where to send its announcements by assuming every network is the usual size, and shouting at a.b.c.255. On a network that is not that size — a /22, say, which is common on home routers — the real broadcast address is a different one entirely, so every announcement and every question went to an address with nothing on it. The kernel is now asked for each interface's actual broadcast address.
Installing an update left the old version running
A background service that is already running keeps running the old code. So every fix did nothing until the next login, while the version number said otherwise. Upgrades now restart the running copies, and both parts log which version they actually are.
Installing
sudo apt install ./lightmorphic-flow_0.6.7_all.deb
More at flow.lightmorphic.com.