• Click any mermaid diagram in preview to zoom it full-screen
• ⌘⇧T toggles a todo on the current line, with consistent prefix handling across formats
• Detects Claude and Codex CLIs installed via nvm so you don't need to fix PATH manually
• Pasting a URL now keeps it as a link instead of failing an image download
• Hardened large-file handling to keep memory in check when opening big notes