center2055/DNS-Hop v2.1 on GitHub

DNS Hop v2.1

Polish release on top of v2.0 — a long list of bug fixes, real cross-platform title-bar handling and several missing v1 features brought back.

Custom DNS endpoints are back. Add UDP/TCP, DoH or DoT entries through a proper FluentAvalonia ContentDialog, persisted to settings. Each resolver row now has an include/exclude checkbox that the benchmark respects, plus a "Remove" button on custom rows.
Sort + filter bars on Resolvers and Results. Sort by Region / Provider / Endpoint / Protocol (Resolvers) or Best / Average / Cached / Uncached / DotCom / Provider / Status (Results), plus No-logs / My-region / Included / Hide-dead / Hide-redirecting / DNSSEC-only / Hide-poisoned chips.
Apply a profile now actually applies BOTH IPv4 and IPv6 to the active adapter in one elevated call. No more "applied Cloudflare but the system still uses the router via IPv6" leaks.
Leak test is now honest and provider-agnostic. Compares the IPs you applied via DNS Hop (from apply history) against the resolver nslookup is currently using, with /24 IPv4 and /48 IPv6 anycast tolerance — no more "always says leak detected" when you applied something other than Cloudflare.
Active resolver card no longer says "UnKnown". Falls back to a metadata lookup by IP, then to the bare address.

New sliding-window ETA — converges within a couple of progress callbacks instead of starting optimistic at 2 min and growing to 20 min as the dead-server tail hits.
Elapsed counter no longer freezes when you navigate away from the page and come back.
Concurrency clamp lowered from 64 to 32. The previous ceiling could exhaust native socket/TLS handles and hard-kill the process.
Defensive per-server guard so one bad endpoint can't take down the whole run — the offender is logged and surfaced as a Dead result, the other 239 servers keep going.
Status line now shows Testing X.X.X.X (847/3120) again, like v1.
Live / Resolvers X / Y counter on the progress card.

Title bar finally renders correctly on Windows 10 too. Extended client area means the window's content paints all the way to the top edge instead of relying on Win11-only DWM attributes that Win10 ignores. Window drag and double-click-maximize wired back through a bubbled PointerPressedEvent handler.
ContentDialog for the custom-DNS modal sits on the window overlay layer — proper Win11-style scrim over the full window, no more bleed-through from the sidebar / title bar.
Process-wide SetPreferredAppMode call at startup so any future window in the process (FluentAvalonia ContentDialog overlays, etc.) paints in the right theme from frame 1.
Theme switching is instant on the active window via DWMWA_CAPTION_COLOR + SWP_FRAMECHANGED.
Mica only kicks in when the App theme is set to "System"; Light / Dark use solid window backgrounds so the explicit choice can't be overridden by a system-painted backdrop.
Settings page: dropped the duplicated Benchmark group (those settings already live on the Benchmark page) and aligned every right-side action to a uniform 220 px width.
Results page: dropped the "Copy chart as PNG" action.
Scrollbar sits flush against the window's right edge instead of 40 px in.

scripts/ folder for the publish + packaging scripts.
assets/ folder for the logo PNG/JPG and the bundled public-DNS-resolver INI.
Linux AppImage workflow now also runs on v* tags, renames the artifact with the tag suffix and attaches it to the matching GitHub Release automatically.
Smoke-tested on Debian 12 / Fedora 41 / Arch via the existing CI matrix.