v1.2.0

[1.2.0] — 2026-09-30

✨ Added

• Server backup: versioned JSON export of the target list plus paste-to-import with hardened validation (bad hosts/ports skipped, ids reassigned collision-free, 500-entry cap). Import/export lives in the matrix toolbar menu.
• Community health files: CODE_OF_CONDUCT.md (Contributor Covenant), SECURITY.md (supported versions + private reporting), and a PR template wired to this repo's checklist.
• Heatmap accessibility (thanks @ayanesato, PR #8): localized LOSS badge plus screen-reader labels in all four locales, with widget/semantics tests.
• DNS Lookup tab: raw UDP client for A/AAAA/MX/TXT/NS/CNAME/SOA records against Cloudflare/Google/Quad9 or a custom server IP, with NXDOMAIN distinction, query-time display and zone-copy. Fully localized (en/fa/ru/zh) and theme-aware.

🐛 Fixed

• Windows ICMP targets no longer silently fall back to TCP on failure (mixed fake stats, doubled timeouts); the TCP fallback now runs only where native ICMP is unavailable (non-Windows).
• Warp UDP reachability detection now treats Windows ConnectionReset (WSAECONNRESET) like POSIX ConnectionRefused — the refused branch was previously dead on Windows.
• Sub-millisecond RTT reports the measured wall-clock time instead of a fabricated 0.5 constant (ping and traceroute paths).
• Removed the dead netstudio_quick_ping FFI (no call sites; it also owned the only expect() in the engine and blocked the calling thread).
• FFI resilience: release profile switched from panic = "abort" to "unwind" and every extern "C" entry point runs inside a catch_unwind guard — an engine-internal bug now degrades to an error return instead of killing (or UB-unwinding into) the host process.
• Probe scheduling no longer drifts: per-target loops tick on a fixed tokio::time::interval with MissedTickBehavior::Skip instead of sleep(period) after each probe.
• Dart fallback prober: overlapping 800ms ticks no longer double-count sockets and corrupt histories (reentrancy guard); offline status now needs 3 consecutive failures instead of 3 lifetime losses ever.
• Port scanner: Socket.connect timeouts surface as SocketException, so the old TimeoutException branch was dead and everything showed "closed" — timeout vs refused is now distinguished by OS error code + message; DNS resolves once per scan instead of per port.
• Warp fallback: generation counter kills the stale-loop-overwrites-new-run race; scans over the 4096 endpoint cap are refused with an error instead of firing ~22k fallback sockets; the header badge now shows the actual path in use.
• Traceroute uses the native engine on Windows only; Linux/macOS go straight to the system traceroute binary (native bindings exist there but can only emit timeouts).
• Traceroute output decodes leniently (allowMalformed + stream onError) so non-UTF8 console codepages (e.g. cp866/cp936) can't crash the app via an unhandled FormatException.
• Sidebar footer is capability-honest on non-Windows ("TCP mode").
• DLL loader: cwd-anchored dev paths are now debug-only (kDebugMode); release builds load exclusively from the executable directory, matching the documented policy.
• Add-Server dialog validates hosts with the same normalizer the engines use (URLs normalize, bad hosts fail in the form) and uses millisecond ids so same-second double adds can't collide.
• DNS hardening: family-matched socket bind (custom IPv6 servers work), source-address check against spoofed replies, and automatic TCP retry on truncated (TC) responses per RFC 1035 §4.2.2.
• CSV hardening: formula-injection neutralization (leading =+-@ cells are text-marked) and empty timestamps for never-checked targets instead of 1970.
• Metrics decode moved from per-tick compute() spawns to one persistent worker isolate (with inline fallback), killing 500ms spawn overhead and GC churn.
• Sparkline and bandwidth chart repaint only when the visible shape can differ instead of every frame.
• Target status now follows windowed loss over the recent 40-sample ring (a host down for 10 minutes recovers promptly after reconnecting) while lifetime counters stay intact for totals.
• Native traceroute probes each TTL 3× and averages successful samples, matching the system tracert behavior instead of letting one slow router define the hop.
• Non-Windows lints fixed (c_void/size_of imports gated to Windows, unused host renamed in the ICMP stub) and CI gained an Ubuntu clippy+test job so the #[cfg(not(windows))] paths can never rot silently again.
• Warp scans now publish live progress (tested/succeeded/failed counts plus incremental results) instead of staying at 0% until completion.
• Warp endpoints resolve via explicit IP parsing with family-matched socket binding — IPv6 targets (e.g. [::1]:443) actually work now instead of timing out; bare unbracketed IPv6 stays rejected (port ambiguity).

v1.1.0

✨ Added

• JSON dictionaries: one file per language in assets/lang/ (en, fa, ru, zh), loaded at startup with English fallback; test/i18n_parity_test.dart enforces identical key sets.
• Russian and Chinese UI (locale switch in Settings, persisted; Persian stays the only RTL locale).
• Release workflow now ships Windows x64 (zip), Linux x64 (tarball) and macOS arm64 (zipped .app, Gatekeeper note in README).
• Port Scanner tab: TCP sweep with host + ports spec (80,443,8000-8010, max 4096 ports), bounded-concurrency batches, open/closed/filtered states with well-known service guesses, copy-open and clear actions. Fully localized and theme-aware.
• Alert log: status transitions recorded with severity (critical/warning/info), unread badge on the matrix bell (red when the latest is critical), newest-first dialog with per-event RTT/loss detail and clear-all. Boot baselines (pending → anything) are not logged.
• Unit tests for traceroute host validation, metrics-snapshot decoding, the alert log and CSV export.
• CSV export: one-click snapshot of all target metrics (RFC 4180 quoting, sorted by id) to Documents/VeloceNet-Studio/velocenet-metrics-<timestamp>.csv, with copy-path feedback. The button shows a spinner and ignores taps while exporting (no duplicate downloads), then confirms with file name + size.

🐛 Fixed

• Traceroute fallback races: stale stdout/exit-code/DNS callbacks from a killed run can no longer overwrite the new trace (generation counter + subscription cancel in stop()).
• Traceroute host validation: IPv4 (octet-checked), IPv6 (±brackets) and hostnames accepted; shell metacharacters and empty hosts rejected with an error instead of a silent no-op.
• Traceroute parser: IPv6 hop addresses recognized; RTT now averages all samples per line (was first-sample only, decimals truncated on Linux).
• Traceroute maxHops/timeoutMs clamped in Dart before FFI (unclamped maxHops truncated to u8) and before system-prober arguments.
• Metrics snapshot JSON now decodes in a background isolate (compute) with backpressure (overlapping ticks skipped); malformed payloads keep the previous frame.

🔄 Changed

• Bandwidth interface counters migrated from GetIfTable (32-bit, wraps every ~4 GiB) to GetIfTable2 (64-bit InOctets/OutOctets, real TransmitLinkSpeed, UTF-16 friendly names). Requires the Win32_NetworkManagement_Ndis windows-sys feature.

v1.0.0 — Initial Release

[1.0.0] — 2026-09-21

First public release. 🎉

✨ Added

• Ping Matrix with ICMP (Windows IP Helper, no admin needed) + TCP-handshake probes, live sparklines, RTT avg/min/max, RFC 3550 jitter, loss %.
• Traceroute (TTL-based visual hop chain + data table, Windows native ICMP).
• Bandwidth monitor (per-interface live deltas via GetIfTable, top processes by connection share, explicitly labeled estimated).
• Warp Scanner (WireGuard-style UDP probe + TCP fallback, ranking, copy-to-clipboard, one-click add to Ping Matrix).
• Settings page: Light / Dark / System theme + English / فارسی locale, persisted with shared_preferences (default: English).
• Full i18n + theming migration for Ping Matrix, Traceroute, Bandwidth, Warp Scanner and sidebar (AppStrings, ThemeX adaptive colors).
• GitHub community files: issue templates, CI + Windows release workflows, CONTRIBUTING.md, expanded README.md.
• LICENSE (GPL-3.0-or-later) and repository metadata (repository, homepage, issue_tracker).

🐛 Fixed

• Secure native-library loading (executable-anchored absolute paths only, no cwd/PATH probing → no DLL hijacking).
• FFI input validation (host/port/protocol/interval/timeout) on the Dart side, clamped ranges in the Rust engine.
• Native engine task leaks: per-target JoinHandle tracking, abort on remove_target / start / stop.
• quick_ping reuses a shared Tokio runtime instead of creating one per call.
• Warp CSV hardening: 256 KB / 4096-endpoint caps, bracketed-IPv6 parsing, rejection of bare IPv6 without port.
• Sidebar overflow crashes in narrow windows (flexible brand + engine-status rows).
• AddTargetDialog preset-name truncation (split(' ')[0] removed) and missing port/interval validators.
• IndexedStack tab navigation preserves Traceroute/Bandwidth/Warp state across tab switches.
• Native metrics polling interval 200 ms → 500 ms (less UI-thread JSON pressure); print → debugPrint in the engine service.
• Rank medals (🥇🥈🥉) replaced with text ranks (#1, #2, …) for font/i18n safety.