CotEditor 5.0.0

What's new in this version:

New Features:
- Folder Navigation: Open folders in CotEditor and browse their contents from the new sidebar to switch documents
- Support macOS 15 Sequoia
- Support Writing Tools with Apple Intelligence
- [AppStore ver.] Now, the user can donate to the CotEditor project via in-app purchase in the new Donate settings pane
- Add new “Select Enclosing Symbols” and “Split Selection by Lines” commands to the Edit > Select menu
- Add new “Show in Finder” command to the File menu
- Add new “Create Document in CotEditor” shortcut action
- Add the “Highlight” color to the CotEditor theme format
- Support the alpha channel for the current line in theme settings
- Add Korean localization
- Add Assembly syntax
- Add new “Resinifictrix (Dark)” theme

Improved:
- Change the system requirement to macOS 14 Sonoma and later
- Add “Select Column Up/Down“ commands to the Edit > Select menu
- Change the unit of character ranges handled in CotEditor Scripting for AppleScript from UTF-16 based to the Unicode grapheme cluster-based (This is to follow the specification change in AppleScript 2.0 introduced in Mac OS X 10.5).
- Improve VoiceOver support in the Quick Action bar
- Update all the bundled themes to have the custom highlight color and a 70% opacity in the current line highlight
- Improve the performance of counting values in the editor for the status bar and the document inspector to avoid flicking of the display
- Set the editor's kerning to zero when a monospaced font is set via the Font panel
- Update the cot command to ignore piped text if a file to open is specified
- Rename the “New CotEditor Document with Selection” service with “New CotEditor Window Containing Selection.”
- Enable opening the Color Code window even without any documents
- Ignore empty outline items
- Avoid the theme loading error when a value is missing
- Make more table columns sortable
- Update the Swift syntax
- Update C++ syntax
- Improve the User Guide contents
- Remove Solarized themes from the bundle
- [trivial] Organize the structure of the Edit menu
- [trivial] Suppress display of the “Extracting” message on the navigation bar in instantaneous parsing
- [trivial] Make names of code contributors in the About window selectable
- [dev] Update the build environment to Xcode 16 (Swift 6, macOS 15 SDK)
- [dev] Migrate all unit tests to Swift Testing
- [dev] Migrate the navigation bar and the Snippets settings view to SwiftUI
- [dev] Update Yams from 5.1.2 to 5.1.3

Fixed:
- Fix an issue that the rectangular selection cannot stop the selection just until the second line from the end
- Fix an issue that the English labels in the issue report template were unnecessarily localized