athasdev/athas v0.4.3 on GitHub

Problems pane, CLI opening, and model selector redesign

New Problems pane that surfaces diagnostics with quick actions — click a warning or error to jump to the source, or apply a code action right from the pane
Open files and folders straight from the terminal with athas foo.txt or athas ., and deep links via athas://open
The AI model selector has been completely redesigned into a single unified dropdown with inline API key and Ollama URL editors, provider icons, and full-width search across all providers
Adjustable UI font size in Settings > Appearance — scales text and icons across the entire interface
You can now create new files with Ctrl+N even when no folder is open

Default AI provider is now Anthropic Claude Sonnet 4.5
Language extension installs use bundled parser assets instead of fetching from CDN
"Go to File" has been renamed to "Quick Open" everywhere
XML-family files (xml, xsl, xslt, svg, plist) now get syntax highlighting
Sticky line numbers in file preview so they stay visible while scrolling

Language servers now properly activate after installation on Linux
Switching between files no longer causes stale highlighting, wrong cursor positions, or scroll jumps
Syntax highlighting works correctly after updating from older versions (stale cache issue)
File drops work reliably on Windows, and file tree lag on large repos is reduced
Terminal fonts render correctly on Windows with platform-aware fallbacks
GitHub PR menu correctly detects expired tokens instead of showing a cryptic error
Menus close properly when clicking outside on Windows
macOS text replacements now work in the terminal
Diff viewer hunk accordions actually toggle when clicked