The RDS fix that stops the waterfall dying. A corrupted RDS byte (PTYN, PS or RadioText) made the client hang up on the spectrum socket — waterfall and tuning gone, audio playing on perfectly, because audio is a separate socket. It follows the station rather than the receiver, which is why it looked like a network fault. Anything ill-formed is now dropped before it can reach a frame.
Anyone hosting a receiver from the app needs this build — updating a Pi or a Mac does not fix an app-hosted server.
Per-band gain locks in Advanced server mode. A ceiling can now be a limit or the setting, band by band: hold FM at a fixed gain while HF stays adjustable underneath a ceiling. On a HackRF a locked band also carries the LNA/VGA split, because a total is enough to limit with and not enough to set with. Lock "All bands" and the whole radio is fixed.
A ceiling set from the phone was ten times too tight. The app stored fm:25.0dB and the server read 25 — i.e. 2.5 dB. Fixed in the parser; existing figures written by the setup page are untouched.
Choosing a capture width now really does pin it. That screen has always said "listeners cannot change it"; the server only enforced it as a ceiling.