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5DO 1.2.1

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@github-actions github-actions released this 03 Nov 05:23
· 33 commits to master since this release
v1.2.1
56f736e

5DO 1.2.1

Release date: 2026-11-03
Status: Arm64 packaging update on the 1.2.0 feature and accuracy release.

Highlights

  • Windows arm64, Linux arm64, and macOS arm64 bundles. All six RIDs are now built
    from the same source and packaging script as the x64 bundles.
  • Architecture verification. CI checks the PE, ELF, and Mach-O machine type of the
    arm64 apphosts. x64 bundles keep their runtime selftest and desktop smoke tests;
    arm64 bundles are architecture-validated build artifacts because no arm64 runner is
    available.
  • No emulator behavior changes. 1.2.1 is the same 1.2.0 code with the arm64
    packaging and release matrix added.

Requirements

  • The .NET 10 Runtime installed on the host. The bundles are framework-dependent and
    do not include the runtime. Choose the x64 or arm64 bundle that matches your OS.
  • A legally obtained 1 MB 3DO BIOS ROM (for example panafz1.bin).
  • Legally obtained 3DO disc images in ISO, BIN, CUE+BIN, or CHD format.
  • Windows 10+, a current Linux desktop, or macOS 12+.
  • An OpenGL 3.3 or OpenGL ES 3.0/3.1 context for the GPU presenter; the CPU
    WriteableBitmap fallback is used when OpenGL is unavailable.

BIOS ROMs and game images are not included.

Artifacts

The release publishes six versioned bundles and SHA256SUMS.txt:

  • 5do-1.2.1-win-x64.zip
  • 5do-1.2.1-win-arm64.zip
  • 5do-1.2.1-linux-x64.tar.gz
  • 5do-1.2.1-linux-arm64.tar.gz
  • 5do-1.2.1-osx-x64.tar.gz
  • 5do-1.2.1-osx-arm64.tar.gz

Each bundle contains both the desktop app and the CLI, README.md, LICENSE,
THIRD-PARTY-NOTICES.md, whatsnew.md, docs/Licensing.md,
docs/ReleaseLegalReview.md, docs/OpenALSoft.md, docs/OpenAL-Soft-COPYING.txt,
these release notes, and PACKAGE.txt.

The apps are framework-dependent single-file executables and require the .NET 10
runtime on the host. No .NET runtime is embedded in the executables or copied into the
bundle. PDB and XML documentation files are omitted because they are build outputs, not
runtime dependencies. Native libraries (OpenAL Soft, Skia, and ANGLE) stay beside the
apps so the LGPL replacement rights remain practical.

Verification

  • dotnet build 5DO.sln -c Release: 0 warnings and 0 errors
  • dotnet test tests/FiveDo.Tests/FiveDo.Tests.csproj -c Release: 1,597/1,597 passing
  • dotnet format 5DO.sln --verify-no-changes --no-restore: clean
  • jb inspectcode 5DO.sln --severity=WARNING: 0 results
  • Six bundle builds; x64 CLI selftest and desktop --smoke-test pass
  • arm64 apphost machine types verified: PE ARM64, ELF aarch64, Mach-O arm64
  • Bundle checks confirm no runtime/, *.xml, or *.pdb files are present
  • Release workflow
    https://github.com/purelogiccode/5DO/actions/runs/41583317988 passed all six
    bundle jobs and published https://github.com/purelogiccode/5DO/releases/tag/v1.2.1;
    all six SHA256SUMS.txt entries verify
  • 3,000-frame regression hashes for Gex, Lemmings, and Road Rash remain unchanged

Known issues

  • Arm64 bundles are architecture-validated but are not executed on arm64 hardware in
    CI. Please report arm64 runtime findings with a diagnostics bundle.
  • Crash 'n Burn (Japan) remains the single known boot failure (593/594 local discs
    render).
  • Linux GPU presentation is preview/best-effort under llvmpipe.
  • Display refresh above 60 Hz re-presents the latest frame; frame interpolation is not
    implemented.
  • WebAssembly, Android/iOS, and Raspberry Pi are out of scope.

Licensing

5DO is donationware: non-commercial, source-available software under the FreeDO
modified GNU LGPL. Donations do not grant commercial rights. "3DO", "Panasonic", and
"GoldStar" are trademarks of their respective owners; 5DO is not affiliated with or
endorsed by them.

See Licensing.md, OpenALSoft.md, and
ReleaseLegalReview.md for the full notices.

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