[Marc-André Moreau (mamoreau-devolutions)]

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Summary

Adds end-to-end beta channel support for UniGetUI using undotted prerelease versions (2026.3.2-beta1, 2026.3.2-beta2, 2026.3.2-beta3 upgrading to 2026.3.2):

• SemanticVersion (src/UniGetUI.Core.Tools/SemanticVersion.cs): Compare alphanumeric prerelease identifiers with a shared prefix and trailing integer (beta1, beta2, beta10, rc1, rc2) numerically by suffix while preserving standard SemVer ordering (2026.3.2-beta1 < 2026.3.2-beta2 < 2026.3.2-beta10 < 2026.3.2).
• AutoUpdaterHelpers (src/Shared/AutoUpdater.Helpers.cs) & AvaloniaAutoUpdater (src/UniGetUI.Avalonia/Infrastructure/AvaloniaAutoUpdater.cs):
  • Parse and compare updater versions via SemanticVersion with 4-part .0 core normalization (2026.3.2.0-beta1 == 2026.3.2-beta1 < 2026.3.2 == 2026.3.2.0).
  • Update SelectChannel so Beta is selected when EnableUniGetUIBeta is enabled and Beta is strictly newer than Current, falling back to Current if Beta is absent or once final Current catches up/passes Beta.
• Settings UI (src/UniGetUI.Avalonia/Views/Pages/SettingsPages/General.axaml.cs): Wire GeneralUpdaterCard.Click ("Check for updates"), GeneralUpdaterCard.StateChanged, and EnableUniGetUIBetaCard.StateChanged to trigger update checks.
• Release & Version Stamping (scripts/set-version.ps1, .github/workflows/build-release.yml):
  • Fix $ManifestPath in scripts/set-version.ps1 to src/UniGetUI.Avalonia/app.manifest and strip leading v/V and + metadata when computing the 4-part file/assembly version.
  • Preserve prerelease suffixes when computing onedrive-version (2026.3.2-beta1 → 2026.3.2.0-beta1) and pass --prerelease to gh release create when publishing a prerelease version.

Validation

• dotnet test src/UniGetUI.PackageEngine.Tests/UniGetUI.PackageEngine.Tests.csproj --filter "FullyQualifiedName~SemanticVersionTests" --verbosity q --nologo /p:Platform=x64 /p:UseSharedCompilation=false /m:1 — Passed (32/32 across net10.0 and net10.0-windows10.0.26100.0)
• dotnet test src/UniGetUI.Tests/UniGetUI.Tests.csproj --filter "FullyQualifiedName~AutoUpdaterTests" --verbosity q --nologo /p:Platform=x64 /p:UseSharedCompilation=false /m:1 — Passed (37/37)
• dotnet format whitespace src --folder --verify-no-changes --verbosity minimal — Passed
• dotnet format style src/UniGetUI.Windows.slnx --no-restore --verify-no-changes --verbosity minimal — Passed

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[Copilot]

🟡 Changes recommended

Version-ordering regressions, overlapping updater attempts and invalid macOS beta metadata remain unresolved.

3 open issues

• Use Apple-compatible versions for beta bundles · New
• Serialize concurrent updater attempts · New
• Fix inconsistent version comparison ordering · New

What changed in this PR

Adds beta-channel support across UniGetUI’s updater, settings UI, version stamping and release workflow.

Changes:

• Adds prerelease comparison, version normalization and stable-channel fallback.
• Connects update settings to immediate checks and expands regression tests.
• Adds beta release inputs and prerelease publishing metadata.

File	Description
src/​UniGetUI.Tests/​UniGetUI.Tests.csproj	Removes the directly linked updater helper.
src/​UniGetUI.Tests/​AutoUpdaterTests.cs	Tests beta progression and channel selection.
src/​UniGetUI.PackageEngine.Tests/​SemanticVersionTests.cs	Adds undotted prerelease ordering cases.
src/​UniGetUI.Core.Tools/​SemanticVersion.cs	Compares matching label suffixes numerically.
src/​UniGetUI.Avalonia/​Views/​Pages/​SettingsPages/​General.axaml.cs	Triggers update checks from settings.
src/​UniGetUI.Avalonia/​UniGetUI.Avalonia.csproj	Includes shared updater helpers.
src/​UniGetUI.Avalonia/​Infrastructure/​AvaloniaAutoUpdater.cs	Uses prerelease-aware comparisons and channel selection.
src/​Shared/​AutoUpdater.Helpers.cs	Adds updater version and channel helpers.
scripts/​set-version.ps1	Normalizes versions and corrects the manifest path.
.github/​workflows/​build-release.yml	Adds beta inputs and prerelease publishing.

_{Review effort: Balanced}

[Copilot]

🟡 Changes recommended

Pending attempts prevent channel changes from taking effect, and version normalization discards nonzero revisions.

1 open issue

• Handle channel changes during pending consent · New

1 previously missed issue

In code that hasn't changed since last review

Preserve nonzero fourth version components

src/​Shared/​AutoUpdater.Helpers.cs:314

Preserve nonzero fourth version components here. NormalizeVersionForComparison drops every revision, not just .0, so 2026.3.2.1-beta1 becomes 2026.3.2-beta.1. The workflow now accepts four-part base versions, but with Current=2026.3.2.0 and Beta=2026.3.2.1-beta1, channel selection incorrectly chooses Current. Only remove a zero revision, and cover nonzero revisions in the updater comparison and channel-selection tests.

3 resolved since last review

• Fix inconsistent version comparison ordering
• Serialize concurrent updater attempts
• Use Apple-compatible versions for beta bundles

_{Review effort: Balanced}

[Copilot]

🟡 Changes recommended

Channel-change cancellation can leave obsolete, non-closable progress banners visible indefinitely.

1 open issue

• Dismiss progress banners on channel-change aborts · New

1 resolved since last review

• Handle channel changes during pending consent

_{Review effort: Balanced}