RatioLab 0.1.9

RatioLab 0.1.9 provides offline parameter guides, motion-speed updates without regenerating geometry, nominal involute gear measurements, working-backlash proposals and precise numeric editing. See the changelog for the source changes since 0.1.3.

This release includes the packaging repair that keeps warnings and errors separate from machine-readable native test reports. The tag identifies commit 2fde5c6bdbaffb549cf1486ce574f8550413679f; the earlier 0.1.9 source push did not provide a downloadable release. The browser application and other pending local development are not included.

Downloads

• Windows 11 x86-64: RatioLab-0.1.9-windows-x86_64-setup.exe.
• macOS 15+: choose the arm64.dmg for Apple Silicon or x86_64.dmg for Intel.
• Ubuntu 24.04+ / compatible x86-64 Linux: use ratiolab_0.1.9_amd64.deb, the .run installer or the portable .tar.gz. Linux requires glibc 2.39+.

Python, GTK and required runtime libraries are included; graphics drivers come from the operating system. Windows Setup is unsigned. macOS applications use ad-hoc signing without Apple notarization. A compatible OpenGL driver is required.

Verification

Native installer checks and Python distributions were built for the exact tag commit: native CI, Python CI. build-evidence.json records job outcomes, installed GUI/MCP reports and file hashes. SHA256SUMS contains independently recalculated hashes for the six downloadable binaries. Linux (Mesa software rendering) and both macOS architectures (Apple Software Renderer) passed installed GUI checks for all ten families and workspace export. Windows passed installer/runtime/MCP checks; its hosted runner could not create an OpenGL context, so the full Windows GUI remains unverified by this CI. The evidence records this limit explicitly. These checks do not establish performance or compatibility on every computer.

Gear measurements and motion are nominal/theoretical. Surface sampling and construction checks do not certify strength, service life or manufacturing readiness.