OpenMTR 1.2.0

What's new in v1.2.0

✨ New Features

• Keyboard shortcuts: Ctrl+C to copy and Ctrl+S to save/export. When a text field is focused, Ctrl+C copies only the selected text from that field instead of the results table.
• JSON export: results can now be exported as .json, in addition to the existing .txt and .csv formats. Export now goes through a native Windows save dialog.
• Packet loss bar: each hop row shows a visual bar indicating packet loss, with a tooltip showing the exact numbers on hover.
• Jitter column: a new column showing per-hop jitter.
• Row/cell hover feedback: hovering a row or cell shows a tooltip with packet loss details and flags hops that returned replies from more than one IP (route change / per-packet load balancing). The tooltip also shows the full IP/hostname when it doesn't fit in the cell.
• Live test duration: the title bar shows a running timer while a trace is active, frozen at the final duration once it's stopped. Start time and duration are now also included in exported reports (.txt and .json).
• About dialog.
• System accent color support: the UI now picks up the accent color configured in Windows, instead of using a fixed color.
• Light/dark app icons: the application icon now has separate light and dark theme variants.

🚀 Improvements

• Reworked tracing and discovery-mode logic for more reliable and consistent hop detection.
• Table headers: units (ms, %, ...) are now visually separated from the column name instead of being part of it.
• Hops with 0% packet loss now render their Packet Loss / Sent / Received values in a dimmed style, drawing more attention to hops that actually have issues.
• Tooltips (both on table cells and on title bar buttons) now position themselves relative to the cursor, flip to stay on-screen, and never spill outside the app window; they no longer jump around while live values keep updating underneath them.

🎨 UI / Design

• Full UI pass to align the app with the WinUI 3 / Fluent Design language: spacing, backgrounds, borders, typography, scrollbars, buttons, inputs, checkboxes, the title bar, the dialog window, the loading indicator, tooltips, hover states, disabled states, and separate focus styling for keyboard vs. mouse.

🧹 Internal

• Removed unused Qt modules, shrinking the built application by roughly 5 MB.
• Reworked the tracing engine's internal threading model: a single asynchronous dispatch loop now drives every hop's probes instead of one OS thread per hop.
• Enabled Control Flow Guard, a standard Windows exploit mitigation, which also tends to reduce false-positive antivirus flags on the built executable.
• General code cleanup and reorganization; all comments reviewed and updated.