Motrix 2.0.0-beta.16

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Motrix 2.0.0-beta.16 is the next Motrix Turbo beta intended for public
distribution only after every protected release gate passes. It repairs the
two independent fail-closed container checks observed during beta.15 without
moving or reusing the immutable v2.0.0-beta.15 tag.

The beta.15 historical record
documents the successful desktop, GitHub prerelease, and R2 distribution, the
two successful native container builds, and the incomplete container result.

Container inspection and smoke recovery

• Builds linux/amd64 on ubuntu-22.04 and linux/arm64 on
  ubuntu-22.04-arm. Each job verifies its GitHub-hosted Linux runner and
  native architecture before Buildx starts. The container release path does
  not install or invoke QEMU.
• Validates Docker Buildx's documented flat image configuration for a
  single-platform source and the platform-keyed form used by multi-platform
  inspection. Missing, unexpected, multiple, ambiguous, or conflicting
  platform data fails closed before metadata can be accepted.
• Makes the local BitTorrent fixture prove through aria2 JSON-RPC that exactly
  one active torrent has all bytes available, then proves the seeder port is
  reachable from the Server container before creating the real download task.
  Tracker mutation is exercised only after the transfer and file hash pass;
  bounded failures report task, tracker, peer, and byte-progress diagnostics.
• Pushes each successful platform only by its untagged, content-addressed OCI
  digest to Docker Hub and GHCR. A single architecture never receives the
  public version tag and cannot become the official release on its own.
• Anonymously pulls the exact staged digest from both registries and runs the
  full Server runtime smoke on its native runner. Immutable platform metadata
  can be uploaded only after both registry smokes succeed.
• Binds each platform record to the exact version, source commit, workflow run
  and attempt, native runner identity, raw OCI index hash, image manifest,
  attestation manifest, provenance, and SPDX SBOM.
• Allows one finalize job to proceed only after the complete amd64/arm64 build
  set succeeds. It rejects missing, duplicate, unexpected, cross-wired, shared,
  or future-attempt digests before creating either versioned index.
• Rechecks both immutable version tags immediately before finalization. A clean
  run creates both indexes from the verified platform digests; a rerun resumes
  an identical complete result or repairs one missing registry from the
  verified existing index. Any conflicting immutable tag fails closed.
• Requires Docker Hub and GHCR to expose the same final index digest, platform
  manifests, and attestation manifests. It validates max-level BuildKit
  provenance, the exact source revision and builder run, and a non-empty SPDX
  SBOM for both architectures before signing.
• Signs each final index digest with the exact protected tag-workflow identity,
  verifies both signatures anonymously, and then runs the full public runtime
  smoke on native amd64 and arm64 runners against both registries.
• Stable floating aliases are handled by the final recovery-safe job only after
  every build, index, signature, provenance, SBOM, anonymous pull, and runtime
  gate succeeds. Beta releases publish only their immutable version tag, so
  beta.16 does not update latest, stable, or another stable alias.

The GitHub prerelease, R2 update feed, container registries, and Snap Store
remain independently gated publication channels. Their individual safety and
recovery rules are strict, but this release does not claim cross-channel
atomicity.

Snap beta policy

Snap is not part of the beta.16 distribution. Protected prerelease Snap runs
stop after source validation, so they do not build Snap artifacts, upload Store
revisions, or change latest/edge. Stable Snap publication retains its
complete two-architecture verification and protected Store gates.

Highlights

• A ground-up desktop rebuild with Electron 43, React 19, and TypeScript 7,
  including a customizable Dashboard, dark mode, a cross-platform application
  menu, and clearer task-inspector feedback.
• One host-neutral download core for both the desktop app and the Node/Web
  Server, with SQLite session recovery, tracker management, UPnP/NAT-PMP, and
  HTTP, FTP, BitTorrent, and magnet support.
• MDXP-based integration for the official CLI and browser handoff, including
  local discovery and device-code pairing for remote Server instances.
• A QuickJS plugin sandbox with capability consent, bundled builtin plugins,
  and an in-app plugin marketplace.
• Persistent multi-platform Server containers for NAS and home-server
  deployments, published only after the complete native architecture set and
  every public verification gate pass.

Before testing

This is prerelease software. Back up your existing Motrix application data and
downloads before installing it. Migration from Motrix v1 data has not yet been
validated, so do not use your only copy of v1 data with this beta.

When practical, test v2 in parallel using a separate OS account, machine, or
Docker data directory. Do not rely on this beta for your only copy of important
downloads.

What to test

• HTTP, FTP, BitTorrent, and magnet downloads, including pause/resume and
  session recovery
• Desktop integrations, browser and CLI handoff through MDXP, and sandboxed
  plugins
• Headless Server deployment, persistent storage, remote pairing, and native
  amd64 and arm64 container images

Planned downloads after release gates pass

After every container gate passes, the versioned image references will be
docker.io/motrixapp/motrix-server:2.0.0-beta.16 and
ghcr.io/agalwood/motrix-server:2.0.0-beta.16. See the
Docker Server deployment guide
for storage, networking, and upgrade guidance.

Known distribution limits

• AppImage is not published for this beta.
• Flatpak is validated separately and is not published by the release tag;
  the GitHub prerelease includes its Native Host companion archives.
• Windows arm64 and all 32-bit packages are not available.
• Windows packages are unsigned and may trigger a Windows SmartScreen warning.
  Download them only from the official GitHub prerelease after it is published.
• Beta container tags are immutable and do not update latest, stable, or
  other stable floating tags.
• Snap is not published for this beta. Prerelease Snap runs stop after source
  validation without building or publishing Snap artifacts.

Feedback

Please report reproducible problems through
GitHub Issues. Include your
operating system, architecture, package type, and the steps needed to reproduce
the issue.

What's Changed

• fix(release): accept Buildx platform output and stabilize seed smoke by @agalwood in #1866

Full Changelog: v2.0.0-beta.15...v2.0.0-beta.16