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Bump to v3.1.3: single-instance lock + update/read-only reliability fixes

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Fixes the chained-fault runaway Andre hit after an update (multiple copies
stacking, audio climbing to deafening, terminal kill to recover).

- Single-instance lock (SingleInstanceCoordinator + SingleInstanceDialog,
  wired in Program.Main). A named mutex makes two copies impossible. A second
  launch offers: switch to the running copy (default; surfaces it from the
  tray via a named activation event), or force the running copy closed and
  start fresh (Process.Kill, retried elevated if the target is elevated).
  This is the structural fix that makes the stacking runaway impossible.
- Prompt-free update exit. InstallUpdateAsync sets updatingInProgress before
  Application.Exit(); the close path's skipPrompt now honours it, so no
  unsaved-changes dialog (whose default button is Cancel) can abort the
  update's restart.
- Read-only persistence fix. BuildCurrentProfile now carries
  currentProfileReadOnly into the saved snapshot. Previously a deliberate
  save of a locked profile wrote ReadOnly=false, silently unlocking it on
  disk — which re-armed the save prompt that then blocked the update.
- In-process double-install guard. updateInstallStarted stops the ~4 s
  startup check and the background poll both staging an install + helper.
- Docs: About box, RELEASE_NOTES.md, readme.html + MANUAL.md ("Only one copy
  of RemSound runs at a time").

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Ednunp
2026-05-31 17:33:11 +01:00
co-authored by Claude Opus 4.8
parent baf50baf73
commit 9ab0a1a20a
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RELEASE_NOTES.md
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# RemSound v3.1.2
# RemSound v3.1.3
A small accessibility fix for the system tray icon, plus a clearer "check for updates" message for Windows 7 users. Minor update — safe to take, nothing else changes.
An important reliability fix. After an update, a chain of small faults could line up and leave RemSound misbehaving — in the worst case, more than one copy running at once with the sound getting louder and louder. This release breaks that chain in several places, the most important being that RemSound now flatly refuses to run as two copies at the same time.
## The tray icon's double announcement (screen reader users)
## What could go wrong (and now can't)
If you run RemSound minimised to the tray with a screen reader, you may have noticed the tray icon reading out **two states one after the other** every time you landed on it — for example "no peers connected" and then immediately "1 peer connected". It always happened in that same order, and showing the window then minimising it again was the only thing that cleared it.
A few separate problems were feeding into each other:
### Why it happened
- **Locked profiles could quietly unlock themselves.** If you'd marked a profile as read-only (locked) and then deliberately saved it, the save was silently dropping the lock. Next time you opened that profile it was editable again — so it started asking "save your changes?" when you didn't expect it.
- **That "save your changes?" question could block an update.** When RemSound updates itself it has to close and restart. If the save question popped up at that moment, a stray Enter or Escape landed on "Cancel" and quietly stopped the restart — so the update never finished cleanly.
- **Nothing stopped extra copies running.** With the restart half-done, RemSound could end up with two copies going at once — and then more — each one playing incoming audio, which is why the sound climbed to a deafening level. The only way out was force-closing them all.
Windows stamps a tray icon with its name at the exact moment the icon appears. On a fresh start — say, just after you log in — the icon appears a second or so before your other machine has reconnected, so the honest state at that instant really is "no peers". Windows remembers that as the icon's name and only ever refreshes the little hover bubble afterwards, never the stamped name. So your screen reader read the frozen name ("no peers") followed by the live bubble ("1 peer") — two readings of what should be one thing.
## What's fixed
### The fix
RemSound now re-stamps the icon itself whenever something real changes — a peer connecting or dropping, sending or receiving switching on or off, or a recording starting or stopping. That's the automatic version of the old "show the window then minimise again" trick. Your screen reader now hears a single, current state.
## Recording shows as "recording" in the tray
While a recording is running, the tray summary now simply says **"recording"** rather than counting the seconds. A live timer would have forced the icon to flicker every second or left a screen reader announcing a stale time — neither was good. If you want the exact length, it's on the main window.
## Clearer update message on Windows 7
On a Windows 7 machine that can't make a secure (HTTPS) connection to the update server, **Check for updates** used to report "you're already on the latest version" — which was wrong and confusing. It now tells you plainly that the secure connection failed, names the Windows updates that fix it, and gives you a direct link to download the new version by hand if you'd rather. Windows 10 and 11 were never affected.
- **Only one copy at a time.** RemSound now refuses to run as two copies. If you open it while it's already running, it asks what you'd like to do: **switch to the copy that's already running** (it may be tucked in the system tray, by the clock), or — if that copy is stuck — **force it closed and start fresh**. This makes the stacking-copies runaway impossible.
- **Updates can't be interrupted.** When RemSound updates and restarts, nothing is allowed to get in the way — no question can cancel the restart.
- **Locked means locked.** Marking a profile read-only now survives saving it, deliberately or otherwise.
- **No double-installs.** A single copy can no longer kick off two update installs at once.
## Nothing else has changed
Same wire format, same codec list, same audio cues, same everything else from v3.1. v3.1.2 talks to v3.0.x and v3.1.x peers exactly as before.
Same wire format, same codec list, same audio cues, same everything else from v3.1. v3.1.3 talks to v3.0.x and v3.1.x peers exactly as before.
## Install
1. Download `RemSound-v3.1.2.zip` from this release.
1. Download `RemSound-v3.1.3.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 will not touch your profiles, settings or recordings.
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 profiles, settings or recordings.
4. Run `RemSound.exe`.
## Upgrading
**v1.9 through v3.1.1:** Help → Check for updates works — it will fetch and install v3.1.2 automatically. If you've ticked "Check for updates on startup" and "Silently install updates", v3.1.2 installs itself shortly after launch.
**v1.9 through v3.1.2:** Help → Check for updates works — it will fetch and install v3.1.3 automatically. If you've ticked "Check for updates on startup" and "Silently install updates", v3.1.3 installs itself shortly after launch.
**v1.8 and earlier:** the auto-updater in those versions has a fault that prevents it from installing updates, so Check for updates will download v3.1.2 but not apply it. Install v3.1.2 by hand using the steps above — just this once. From the build you install onward, updates are automatic.
**v1.8 and earlier:** the auto-updater in those versions has a fault that prevents it from installing updates, so Check for updates will download v3.1.3 but not apply it. Install v3.1.3 by hand using the steps above — just this once. From the build you install onward, updates are automatic.