v2.2.0

[2.2.0] - 2026-06-25

🚀 Features

• (engine) Flush color-scheme report on live theme reconfigure
• (alacritty) Add TerminalLinkProvider seam
• (alacritty) UrlLinkProvider as library default link source
• (alacritty) Painter consults LinkOverlay for host links
• (alacritty) TerminalView link providers + overlay decoration/hover/click
• (alacritty) Export link-provider seam from barrel; document it
• (alacritty) Clamp terminal grid to VT minimum; OSC8-only links
• (alacritty) Add primaryTapActivatesLink option for link activation
• (terminal) Lock-step resize pipeline (resolver/policy/controller)
• (example) Add proportional history scrollbar beside terminal
• (terminal) Unified scroll input with TUI line batching
• (terminal) Resize v2 with single viewport authority

🐛 Bug Fixes

• (engine) Skip grid updates after dispose during async drain
• (alacritty) LinkOverlay value equality + drop redundant grid read
• (alacritty) Debounce provider-notify recompute; unmodifiable default link providers
• (alacritty) Recompute link overlay per-turn so decorations track scroll
• (alacritty) Abandon IME composition on engine swap
• (alacritty) Stop kinetic fling on engine swap
• (render) Bound the glyph atlas + grow it incrementally (review)
• (render) Self-sufficient background + implement backgroundOpacity (review)
• (analyze) Silence publish-time lint on test/extension APIs
• (analyze) Qualify static _resizeWindow in pointer extension
• (terminal) Address review findings on links, scroll, and docs
• (terminal) Stabilize scrollback wheel, pan, and scrollbar races
• (terminal) Avoid drainHistoryScroll deadlock on in-flush snap
• (test) Skip benchmark/visual suites by default in dart_test.yaml

🚜 Refactor

• (2W) Finish library seam polish and split pointer input
• (terminal) Atomic engine+PTY resize via onPtyResize
• (terminal) Remove legacy scrollBy path and simplify scroll drain
• (rust) Clean up code formatting and structure in engine and event proxy files

📚 Documentation

• (alacritty) Reference existing engine.workingDir for cwd tracking

⚡ Performance

• (render) Isolate cursor/blink, skip+merge bg rects, columnar FFI grid
• (render) Batch grid glyphs through a GPU glyph atlas (drawRawAtlas)
• (terminal) Throttle grid resize + skip same-size reflow
• (terminal) Lazy per-row link scan and scroll-only scrollbar updates
• Incremental scroll refresh, atlas prewarm, scroll benchmark

🧪 Testing

• (alacritty) Assert LinkOverlay cell gets hint color + underline at painter level
• (alacritty) Lock glyph-cache survival across engine swap
• (alacritty) Fix glyph-swap test priming + share TextFakeBinding
• (benchmark) Add vtebench engine fixtures and regression thresholds
• Fix viewport pixel-floor expectations and add engine breakdown bench

⚙️ Miscellaneous Tasks

• (pub) Prepare 2.1.0 pub.dev release
• (dependencies) Update rust_lib_flutter_alacritty version and add dependency override
• Remove outdated performance and implementation plans from documentation
• Bump rust_lib_flutter_alacritty submodule to 98a4749
• Include dart_test.yaml in workflow path filters
• Release 2.2.0 with rust_lib_flutter_alacritty 0.2.0