v1.0.0-rc.2

d4lc 1.0.0-rc.2

Versions with an -rc.N suffix are release candidates for public
testing, not stable 1.0 releases. X11 is the primary target.
Back up settings and presets before testing and report problems
with the exact version. Wayland remains experimental.

Highlights

• Native Linux port of Diablo4Companion v5.4.0.0 in Rust: no .NET,
  Wine or VM.
• Affix, trade and paragon overlays.
• UI languages: German, English, Spanish, French and Simplified
  Chinese. Simplified Chinese needs a system CJK font (for example
  Noto Sans CJK).
• Settings live in ~/.config/d4lc (or D4LC_CONFIG_ROOT).

Artifacts

• Linux tarball: d4lc-1.0.0-rc.2-linux-x86_64.tar.gz
• Debian package: d4lc_1.0.0-rc.2_amd64.deb
• AppImage: d4lc-1.0.0-rc.2-x86_64.AppImage
• Checksums: SHA256SUMS

Primary payload

• The user-facing entry point is the Slint desktop app
  (d4lc-app), installed as /usr/bin/d4lc by the .deb
  and launched by the AppImage AppRun.
• The debug CLI (d4lc-cli) is bundled as
  /usr/bin/d4lc-debug / /opt/d4lc/bin/d4lc-debug for
  debug workflows. It is not the primary user-facing app.

Runtime requirements

• x86_64 Linux with glibc 2.35 or newer (the artifacts are built
  on Ubuntu 22.04).
• Linux X11 session with DISPLAY set for the primary capture
  and overlay path.
• X server with SHAPE; MIT-SHM is the preferred capture path,
  with XGetImage as the fallback.
• The bundle includes OCR libraries and upstream tessdata packs.
  A custom TESSDATA_PREFIX overrides the bundled packs. The
  runtime requirements file lists remaining host dependencies.
• Wayland (experimental): the build compiles ScreenCast-portal
  capture via the wayland-portal feature (PipeWire); runtime
  hosts need xdg-desktop-portal with a PipeWire backend.
  Wayland capture is synthetic-validated only; X11 remains the
  supported release target for capture/overlay parity. On
  Wayland-only hosts the desktop launcher may still start via
  XWayland.

Upstream provenance

• Upstream baseline: d508a473515fb6239a93a7a1a146b7ad007f01b1
  / v5.4.0.0 (pinned in upstream.lock).
  The licence and provenance documents are in the docs/ folder of
  the bundle (/opt/d4lc/docs, also reachable as
  /usr/share/doc/d4lc in the .deb).

• Upstream LICENSE: docs/upstream-LICENSE (MIT), taken from the
  upstream/Diablo4Companion submodule. d4lc's own licence is
  docs/LICENSE.

• Provenance files: docs/license-provenance.json,
  docs/upstream-file-manifest.json,
  docs/asset-manifest.json.

• Rust dependency notices: docs/rust-dependency-notices.html
  (generated from the locked manifest with cargo-about); the
  royalty-free Slint desktop licence text ships as
  docs/slint-LICENSE.

• Bundled tessdata: Apache-2.0, see docs/tessdata-LICENSE and
  docs/tessdata-provenance.md.

• Overlay font: Inconsolata Bold 3.000 is embedded (used when the
  system has no Consolas Bold), SIL Open Font License 1.1, see
  docs/Inconsolata-OFL.txt and docs/bundled-fonts.json.

• Bundled libraries: the licence texts of the shared libraries
  shipped in lib/ (Tesseract, Leptonica and their image-codec
  chain) are in docs/third-party/<package>.copyright, and
  docs/bundled-libs.txt lists the library files.

Validation status

Build commit: 1c8c6e2d20adc015320b8bf8751fef1a98a2f8f5. Before this draft was created,
the release workflow ran on exactly this commit:

• the full verification (formatting, Clippy, unit and integration
  tests including recorded-frame OCR, headless GUI pilots, the
  desktop visual smoke under Xvfb, the minimum-Rust-version build,
  cargo deny and the upstream asset parity check);
• the packaged startup smoke test of these artifacts under Xvfb;
• installation of the .deb on clean Ubuntu 22.04 and 24.04.

Known limitations / help wanted

• Not all character classes, builds, resolutions or game languages
  have been tested in a live game session.
• Trading and the trade overlay are not validated end to end.
• Rune recognition and data coverage need live-game validation.
• Windows has not been tested; these artifacts are Linux-only.

Not covered by this workflow:

• A live Diablo IV session on X11 with these artifacts. Earlier
  versions were checked in a live game session; whether this
  release was, is recorded in the release description below, not
  implied by this list.
• Imports from the live provider sites through a real browser
  (D2Core, D4Builds, Mobalytics): the workflow uses recorded
  provider data only.
• A real Wayland session: Wayland capture and overlay are covered
  by automated protocol tests only.

Benchmark / validation links

• Detection, OCR scheduling, and hot-path performance benchmark
  evidence is kept outside the repository and is not part of
  this bundle.