Serial Studio Files

🚀 New Features

• In-app AI Assistant: A built-in assistant that can read, build, and edit projects through tool-calling. Supports Anthropic (Claude), OpenAI, Google Gemini, DeepSeek, Groq, Mistral, OpenRouter, and local models. Includes sandboxed filesystem access, an opt-in device-control toggle, rolling-snapshot backups with checkpoint/restore, and a built-in search index.
• Lua 5.4 scripting: Added an embedded Lua 5.4 engine alongside JavaScript for frame parsers and per-dataset value transforms. Includes a 5.1/5.2 compatibility shim and a native string.split.
• Built-In frame parser: A new "Built-In" parser built from native C++ templates configured via JSON, with no user code required. The Modbus and DBC importers emit Built-In map templates directly.
• Control Script automation: Arduino-style setup()/loop() control scripts with a dedicated editor and flow diagram. Adds deviceWriteAndWait and dashboardTick helpers, raw-frame capture via io.getLatestFrame, and a scripting SDK for JS and Lua.
• Per-dataset value transforms: Apply a JS or Lua transform to each dataset. A generic apiCall() gateway and a dashboard.* API are available to parsers, transforms, and painters.
• Workspaces: Group widgets into multiple dashboard workspaces with persisted per-workspace layouts, reorder/validate/cleanup, and debounced autosave.
• Session Database: A SQLite-backed session explorer with password-locked session files. Sessions can be exported as HTML or PDF reports (Chart.js) with optional min/max/mean overlays.
• MQTT rewrite: MQTT is now a first-class input driver paired with a 4-mode publisher (CSV, JSON, Script, Raw). The publisher has its own script editor, a taskbar indicator, and an encrypted credential vault.
• New widgets: Scriptable Painter widget, WebView widget, Waterfall, Data Tables (with live register edits), Meter, Clock and Stopwatch, an Output panel, and a Notification Center with a dashboard log widget.
• Oscilloscope-style plotting: Sweep/trigger mode for time-axis plots with a draggable trigger-level cursor, per-project time-range plots, a GPU PlotCurve ribbon renderer, GPU plot-area fill, and ZOH/stem interpolation modes.
• Multi-band alarms: Per-dataset alarms with severity tiers, an AlarmMonitor, and an alarm-band-aware LED panel.
• CAN Bus: Loopback and listen-only modes, consumer USB-CAN backends (gs_usb, slcan, Seeed/Waveshare), and DBC import including simple multiplexed signals.
• Pop-out dashboard windows: Open widgets in external windows that are tracked by stable project id and restored across sessions.
• Project lock and Operator/Runtime modes: Password-locked operator/engineer separation, a lock overlay, operator shortcuts with per-deployment isolation, and a dedicated runtime mode.
• File transfer protocols: XMODEM, YMODEM, and ZMODEM support.
• Importers: Modbus register-map importer, DBC importer, and protobuf import.
• Right-to-left support: Added Arabic, Hebrew, and Vietnamese with a full RTL pipeline and RTL-aware controls.
• Benchmark dialog: An interactive hotpath benchmark runner backing the 256 kHz CI throughput gate.

🐛 Bug Fixes

• Safety hardening: Multiple NASA Power-of-Ten passes and bug sweeps across the hotpath, IO, and editor layers, covering crashes, undefined behavior, data corruption, and security.
• Multi-source fixes: Prevent port cross-contamination, enable per-group source selection, and keep m_busType in sync when devices are swapped.
• Lua robustness: Lua runtime errors no longer abort the app. pcall and atpanic are guarded so a bad script cannot take down the process.
• macOS fixes: Handle Cmd-Q and Dock-quit, guard DB teardown at static destruction, disable LTO where Xcode 26 dropped Lua exception unwind tables, keep pac-ret off Apple arm64, and strip the quarantine xattr from generated bundles.
• Windows fixes: Deterministic machine ID, 8.3 short-path expansion in path normalization, an embedded manifest with DPI and UTF-8 awareness, and clang-cl build correctness.
• Hotpath guards: Protect dashboard updates against stale caches after a reset and refresh sourceId on frame-pool slot reuse.
• Playback fixes: Align replay column order to the project, snapshot raw values so replays are not all zeros, and rebuild transforms on playback.
• Editor stability: Stop per-keystroke project save and device rebuild storms, and per-keystroke tree rebuilds in config forms.
• Export logs: Restored timestamps in exported text logs (#363).

🎨 UI & Style

• UI revamp with a ribbon toolbar and a polished dashboard widget set (gauge, meter, compass, bar, and needle/face refinements).
• RTL-aware controls (Combo, IconButton, LineField) with mirrored project-editor tables.
• Operator-mode titlebar handling and Windows-native CSD titlebar styling with correct frame insets.
• Project editor lock and mode overlay, toolbar-to-caption gradient blend, and row reorder with context menu.
• Sharpened widget rendering and improved QML style consistency across the application.

⚡ Performance

• 256 kHz+ hotpath: pooled frames, a span fast-lane with in-place QString writes, fast_float parsing, divide/modulo elimination, SPSC audio queues, and cache-line padding.
• PGO builds on Windows (clang-cl), macOS, and Linux, with a process-wide mimalloc allocator override.
• Session database and player I/O moved onto worker threads.
• GPU rendering for QPainter-based widgets via Qt Canvas and QQuickPaintedItem, reducing CPU usage.

💡 Serial Studio Pro

Unlock advanced features with a license key via About → License Management.

Pro features include:

• 3D Plot and XY Plots
• Full MQTT support
• Audio input driver
• Raw USB & HID drivers
• Process I/O driver
• Modbus, CAN Bus, and MDF4
• Session Database, ImageView, and Waterfall
• File-transfer protocols (X/Y/ZMODEM)
• Operator shortcuts and runtime mode

👉 Get Serial Studio Pro: https://store.serial-studio.com/buy/ba46c099-0d51-4d98-9154-6be5c35bc1ec

No Budget?

You can still unlock Serial Studio Pro by contributing:

• Share tutorials, videos, or forum posts.
• Promote on social media or dev communities.
• Translate the UI or improve documentation.
• Send logs, protocol data, or donate development hardware.

👉 VALUE-FOR-LICENSE.md (github.com)

Full changelog: v3.2.7 → v4.0.0