Somnia v12.2.0

Built from the green full-matrix CI run on 8149799: https://github.com/philppplik/somnia/actions/runs/39394661454 . The custom installer was built by the Windows installer workflow on the same commit: https://github.com/philppplik/somnia/actions/runs/39394622086 .

Highlights

First stable release of the 12.2 line. It carries everything tested through the 12.2.0 betas (see the beta.1 to beta.10 release notes for the full list).
Custom Windows setup (Somnia-Setup-preview-unsigned.exe): a branded setup that hands the install over to the app. It stays an unsigned preview extra; Windows SmartScreen will warn. The regular x64/ARM64 setup.exe and MSI files are the recommended install path.

Installer: a quoted install folder path is accepted. The suspected cause of the earlier folder bug is a hypothesis, not confirmed on a real machine.
Installer: the window background now fills the whole window (no white frame). Seen only in a render at 836x640, not on real Windows.
Tests: studio shell screenshot baselines regenerated in CI.

Interactive Windows/macOS launch and real-device feel tests remain unverified. Rust code was verified in CI only.
macOS is Apple Silicon only, ad-hoc signed and not notarized: Gatekeeper may require System Settings > Privacy & Security > Open Anyway. Do not disable Gatekeeper.
The custom installer is an unsigned preview.
Collaboration remains alpha; LAN, relay, updater installs and real provider/model quality are not certified by offline tests.
This release does not replace the Microsoft Store package and ships no MSIX asset. No Store submission was made.

Windows: setup.exe/MSI (x64 and ARM64), or the unsigned preview Somnia-Setup-preview-unsigned.exe. Linux: AppImage/DEB (amd64 and arm64). macOS: DMG (Apple Silicon), copy to Applications and follow the security exception above if offered.

SHA256SUMS.txt lists installer and archive hashes. macos-verification.txt records signature and image checks from CI.