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0.4.0 - 2026-03-12

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@github-actions github-actions released this 13 Mar 02:37

Release Notes

Added

  • xtask: support custom fixture roots in SVG baseline generation/comparison, add Markdown-aware text measurement, and
    integrate an opt-in Node/Puppeteer KaTeX path when tools/mermaid-cli is available.
  • Docs: add and expand docs/workstreams/* parity planning material, including root viewport (parity-root) checks and
    text-measurement alignment notes.
  • Tests/Fixtures: add a broad parity corpus covering font-size precedence, HTML label wrapping, Markdown <br/>
    continuations, unknown XML entities, KaTeX flowcharts, text-style overrides, and root viewport probes across multiple
    diagram types.

Changed

  • Text parity work now consolidates large amounts of fixture-derived width/height/padding data into generated
    *_text_overrides_11_12_2 tables instead of leaving diagram-specific literal branches inline across layout/render code.
  • SVG/style precedence now follows Mermaid more consistently: themeVariables.fontSize and themeVariables.fontFamily
    win where upstream uses them, and parity tooling captures more text-style drift during SVG comparison.

Fixed

  • Text/Markdown: align shared HTML/SVG text handling with Mermaid for inline code, failed __ delimiter runs,
    paragraph-vs-raw-block HTML labels, punctuation-heavy URL wrapping, hyphenated-token min-content width, and trailing
    whitespace height edge cases.
  • Flowchart: align HTML/SVG label wrapping, class/style text application, entity decoding, edge-label DOM/background/root
    bbox behavior, and complete the upstream Cypress new-shapes strict-XML buckets.
  • Class: reduce strict-XML drift across note labels, namespaces, generics, relations/cardinality terminals, style
    propagation, annotation-driven sizing, and SVG/HTML title/member width measurement.
  • ER: align relationship-label Markdown/backtick handling, root htmlLabels semantics, and entity/root font-size
    precedence with Mermaid baselines.
  • State/Class/Mindmap/Kanban/Architecture: align remaining HTML label widths, wrapping-width handling, shared text
    constants, width parsing, and icon/service label fallback geometry between layout and SVG render.
  • Block: complete strict XML parity for the Mermaid block corpus and align remaining marker-aware terminals, space:N
    handling, HTML label sizing, and shape-specific geometry.
  • Requirement/GitGraph/Timeline/Treemap/Sequence/Sankey/C4/Journey/Pie/Radar/XYChart/Gantt: move repeated text constants
    into generated overrides and close the remaining text-geometry, viewport, and font-size precedence gaps that affected
    parity fixtures.
  • Theme/CSS: stop implicitly applying base defaults under theme=default, seed Mermaid-like base/neutral xychart
    defaults, and prefer themeVariables.fontFamily in emitted root SVG styles.
  • Core/Layout internals: clean the remaining strict Clippy offenders in dugong-graphlib, dugong, and parser helper
    code, and scope vendored manatee FCoSE lint exceptions to the algorithm module so current stable Clippy stays
    actionable outside the imported numeric code.
  • Toolchain/CI: pin the workspace Rust toolchain to 1.87.0 and make CI install the same version explicitly, so
    release and local checks stop drifting with floating stable.
  • Toolchain/CI: drop GitHub Actions cargo fmt / cargo clippy steps for now so release CI focuses on build, tests,
    and parity checks while the remaining render hot spots are still being aligned.
  • Maintenance: normalize rustfmt output in parity/text/timeline/xtask helpers so the pinned toolchain now passes
    workspace format checks without local-vs-CI drift.

Install merman-cli 0.4.0

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/Latias94/merman/releases/download/v0.4.0/merman-cli-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/Latias94/merman/releases/download/v0.4.0/merman-cli-installer.ps1 | iex"

Download merman-cli 0.4.0

File Platform Checksum
merman-cli-aarch64-apple-darwin.tar.xz Apple Silicon macOS checksum
merman-cli-x86_64-apple-darwin.tar.xz Intel macOS checksum
merman-cli-x86_64-pc-windows-msvc.zip x64 Windows checksum
merman-cli-x86_64-unknown-linux-gnu.tar.xz x64 Linux checksum