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0.6.3 - 2026-06-25

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@github-actions github-actions released this 25 Jun 21:31

Release Notes

Fixed

  • Trailing-newline parity with dart-sass, split correctly between the library
    API and the CLI.
    The library API (compile, compile_with_source_map, and
    thus the wasm compileString().css and the Ruby gem) now returns the
    serialized stylesheet with no trailing newline — byte-for-byte what
    dart-sass's library API returns. Previously expanded output carried a stray
    trailing newline, so a sass-loader/Vite integration saw one extra byte per
    stylesheet versus dart-sass. The CLI front-ends (the sasso binary and the
    wasm sasso CLI) now append the single trailing newline dart-sass's CLI adds
    to non-empty output in both styles — compressed CLI output previously
    omitted it — while empty output stays empty (0 bytes), also matching
    dart-sass. Verified byte-for-byte against dart-sass 1.101.0 on both the
    library and CLI paths (expanded, compressed, and empty output).
  • The wasm package now reports dart-sass 1.101.0 in info (was
    1.89.0), reflecting the modern-API surface it's compatible with. Tools such
    as sass-loader and Vite parse this version for feature gating, so the stale
    value could gate off newer behavior.

Install sasso 0.6.3

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/momiji-rs/sasso/releases/download/v0.6.3/sasso-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/momiji-rs/sasso/releases/download/v0.6.3/sasso-installer.ps1 | iex"

Download sasso 0.6.3

File Platform Checksum
sasso-aarch64-apple-darwin.tar.xz Apple Silicon macOS checksum
sasso-x86_64-apple-darwin.tar.xz Intel macOS checksum
sasso-x86_64-pc-windows-msvc.zip x64 Windows checksum
sasso-aarch64-unknown-linux-gnu.tar.xz ARM64 Linux checksum
sasso-x86_64-unknown-linux-gnu.tar.xz x64 Linux checksum
sasso-aarch64-unknown-linux-musl.tar.xz ARM64 MUSL Linux checksum
sasso-x86_64-unknown-linux-musl.tar.xz x64 MUSL Linux checksum