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RemSound/RELEASE_NOTES.md
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EdnunpandClaude Opus 4.8 0df2a576fc Release v4.8: fix rare crash from endpoint thrash on a dual-address peer (#16)
The same singer hit a rare crash: their transmitter (COMP3) was reachable at two
addresses at once — the VPN address 10.8.0.1 they chose and that machine's wireless
192.168.3.245 — and the discovery-driven endpoint-follow ping-ponged the connection
between the two (the log shows four moves in 58 ms) right where the process died with
no shutdown line, no managed exception, no dialog: a hard crash from the receiver
audio-session teardown/rebuild churn the thrash caused.

Fix: the follow loop now never moves off an endpoint that's still answering heartbeats,
only follows once the current one has been unreachable for a sustained grace period
(6 s), only to an address that is itself answering, and never more than once per cooldown
(15 s) — so it can't thrash, and a peer reached on a working address stays put (honours
the singer's "just stay on 10.8.0.1"). New endpointUnreachableSinceUtc + lastEndpointMoveUtc
state; genuine DHCP/network moves are still followed a few seconds later.

Also: a global crash handler (Program.WriteCrashReport on AppDomain.UnhandledException +
TaskScheduler.UnobservedTaskException) writes a crash-*.txt into the logs folder, so a
future "RemSound just vanished" report leaves a stack behind. Removed a stale doc comment
left over from the v4.7 adoption removal. Manual gains a "RemSound closed unexpectedly"
troubleshooting entry. Version 4.8; About + RELEASE_NOTES updated.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-27 22:57:49 +01:00

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RemSound v4.8

A rare crash fixed, and crash reports for next time.

Fixed: a rare unexpected close

If a peer was reachable at two addresses at once — for example a transmitter on a VPN and the local network at the same time — RemSound could rapidly flip the connection back and forth between the two addresses. Usually harmless, but a fast enough flip could tear the audio down and rebuild it quickly enough to make RemSound close unexpectedly: you'd find the sound had stopped and the program gone, and relaunching brought it straight back.

RemSound now settles on whichever address is actually working and stays there, only following a genuine move once the current address has properly stopped responding — so the flipping, and the crash it could cause, are gone.

(With thanks again to the singer who reported it and sent the log.)

New: a crash file if anything ever does go wrong

If RemSound ever closes unexpectedly, it now writes a small crash-*.txt file into your logs folder (RemSound folder → user settings and logslogs). There's nothing you need to do with it — but if you ever hit a problem, sending that file in turns a "closed for no reason" into something that can actually be pinned down.

Compatibility

v4.8 talks to v3.3 through v4.7 with no trouble — the over-the-network format is unchanged, so you don't have to update both ends at once. (Everyone still needs v3.3 or newer, where end-to-end encryption came in.)

Install

  1. Download RemSound-v4.8.zip from this release.
  2. Close RemSound.
  3. Extract the zip over your existing RemSound folder, overwriting program files when prompted. The zip is program files only — it won't touch your settings, profiles, logs or recordings.
  4. Run RemSound.exe.

Upgrading

From v3.6 or newer: Help → Check for updates installs v4.8 with the in-app updater — and if it can't finish, it puts your old version back exactly as it was.

From v1.9v3.5: Check for updates works, but uses your current version's older updater for this one hop. If auto-update has been failing on your machine, install by hand using the steps above.

v1.8 and earlier: the auto-updater in those versions can't install updates — install by hand using the steps above.