MacSurf

v0.5.0 Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 11d Media Servers

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Topics

bearssl carbon-api classic-mac codewarrior css3 duktape

+9 more

javascript mac-os-9 macintosh netsurf open-transport powerpc quickdraw retro-computing web-browser

Summary

AI summary

Updates New Features, Fixed in this release, and Optimizations & Stability across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Feature
Feature	Medium	Adds initial SVG support with DOM walker and shape painters. Adds initial SVG support with DOM walker and shape painters. Source: llm_adapter@2026-05-29 Confidence: high	—
Feature	Medium	Implements CSS multi-column layout including column-count, width, gap, rule properties. Implements CSS multi-column layout including column-count, width, gap, rule properties. Source: llm_adapter@2026-05-29 Confidence: high	—
Feature	Medium	Adds full CSS object-position support with keywords, percentages, and lengths. Adds full CSS object-position support with keywords, percentages, and lengths. Source: llm_adapter@2026-05-29 Confidence: high	—
Feature	Low	Enhances font matching by name and actual measurement during layout. Enhances font matching by name and actual measurement during layout. Source: granite4.1:30b@2026-05-29-audit Confidence: low	—
Feature	Low	Improves GrafPort handling for asynchronous layout callbacks. Improves GrafPort handling for asynchronous layout callbacks. Source: granite4.1:30b@2026-05-29-audit Confidence: low	—
Performance	Medium	Reduces redraw overhead by honoring dirty rectangles in macos9_gw_invalidate. Reduces redraw overhead by honoring dirty rectangles in macos9_gw_invalidate. Source: llm_adapter@2026-05-29 Confidence: high	—
Bugfix	Medium	Resolves struct redefinition conflicts enabling CodeWarrior 8 builds. Resolves struct redefinition conflicts enabling CodeWarrior 8 builds. Source: llm_adapter@2026-05-29 Confidence: high	—

Full changelog

MacSurf v0.5.0 - SVG, Multi-column, and object-position

This release brings significant new CSS and rendering capabilities to MacSurf.

New Features

Initial SVG Support: Inline SVG V1 implementation featuring a DOM walker and shape painters. Supports width/height hints and includes diagnostic instrumentation.
CSS Multi-column Layout: V1 implementation of multi-column containers, including column-count, column-width, column-gap, and column-rule-*. Added support for column-span: all segmenting.
CSS object-position: Full implementation in both libcss and the NetSurf core, supporting keyword alignment (top, bottom, left, right, center) as well as percentage and length values.
Font & Text Improvements: Enhanced font matching by name and actual measurement during layout. Improved GrafPort handling for asynchronous layout callbacks.

Optimizations & Stability

Redraw Performance: macos9_gw_invalidate now honors dirty rectangles supplied by the core, dramatically reducing redraw overhead and flickering.
Build Fixes: Resolved struct redefinition conflicts in layout.c that were blocking CodeWarrior 8 builds.
Visuals: Integrated Classic Mac OS app icon resources into the project.

Fixed in this release

fixes195, fixes196, fixes197: SVG pipeline.
fixes179 refinements: Multi-column layout.
fixes191g: object-position implementation.
fixes199h: CodeWarrior 8 build fix for multicol structs.

View diff on GitHub

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