4.0.0

4.0.0

Released on 2026-06-15.

Added

• Added CDMarkdownTextLayoutManager, a custom NSTextLayoutManager subclass used as the TextKit 2 layout manager for CDMarkdownLabel and CDMarkdownTextView on iOS/tvOS 16+. Delegates fragment creation to CDMarkdownTextLayoutFragment and exposes a roundAllCorners property that propagates to each fragment.
• Added CDMarkdownTextLayoutFragment, a custom NSTextLayoutFragment subclass that draws rounded-corner backgrounds for code and syntax spans in the TextKit 2 rendering path. Reads the .backgroundColor attribute from text storage at draw time so code and syntax blocks each use their correct color.
• Added TextKit 2 rendering path to CDMarkdownLabel on iOS/tvOS 16+. Text layout, rect measurement, glyph-position calculation, and link hit-testing all use NSTextLayoutManager when TextKit 2 is active; TextKit 1 fallback is preserved for iOS/tvOS 15.
• Added TextKit 2 rendering path to CDMarkdownTextView on iOS/tvOS 16+. configureTK2() installs CDMarkdownTextLayoutManager via KVC; configureTK1() continues to install CDMarkdownLayoutManager on iOS/tvOS 15.
• Added CDMarkdownTextView.makeTextView(frame:) public factory method. Preferred way to construct a CDMarkdownTextView programmatically — selects TextKit 2 on iOS/tvOS 16+ and TextKit 1 on iOS/tvOS 15 automatically.

Changed

• Raised minimum deployment targets:
  • iOS: 12.0 → 13.0
  • macOS: 10.13 → 10.15
  • tvOS: 12.0 → 13.0
  • watchOS: 4.0 → 6.0
• Improved Swift 6 strict concurrency: removed @preconcurrency imports, @unchecked Sendable conformances, and nonisolated(unsafe) from parser properties; added @MainActor to all sixteen element classes and base protocol declarations; added @MainActor to the NSLayoutManagerDelegate extension.
• Replaced DispatchQueue.main.asyncAfter with Task.sleep in the async parsing pipeline to align with structured Swift concurrency.