This patch release fixes a critical bug in hexadecimal frame delimiter detection that was introduced in v3.2.0.

🐛 Critical Bug Fix

• Fixed Hexadecimal Frame Detection (#335): The frameStart and frameEnd sequences were incorrectly swapped when using hexadecimal delimiters, causing frame detection to fail completely. This affected all projects using hexadecimal frame delimiters (‎app/src/JSON/Frame.cpp).

Thanks to @SvenNouwens for reporting this issue!

💡 Serial Studio Pro

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Pro features include:

• 3D Plot and XY Plots
• Full MQTT support
• Audio input driver
• Advanced plotting capabilities

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Full changelog: v3.2.0 → v3.2.1

Wishing you a Happy 2026! 🎆🥳

Thank you for sticking with Serial Studio throughout 2025! Your feedback, bug reports, and support have shaped this project in ways I never imagined. As we close out this year and look ahead to the new one, I'm excited to share another release packed with new features.

🌐 New Website! I've also launched a brand-new website, check it out at serial-studio.com.

Here's to another year of tinkering, debugging, and building cool things together. 🚀

🚀 Major New Features

• MDF4 File Support: Play and export automotive MDF4/MF4 files with support for CAN, LIN, FlexRay, and analog channels.
• CAN Bus Driver: Full CAN Bus support with DBC database import and frame parser code generation.
• Modbus Driver: Native Modbus RTU/TCP support with register groups and PLC simulator example.
• High-Precision CSV: Improved CSV export and playback with async frame dumping for better performance.
• Command-Line Interface: Connect to devices directly via CLI arguments (UART, TCP/UDP, Bluetooth LE).
• Client-Side Decorations: Custom window borders on Linux and Windows for a modern, consistent look.
• A/B Cursors: Use A/B cursors to measure precise coordinates and differences between data points in your plots.

⚙️ Improvements

• Frame Parser Templates: 25+ ready-to-use parser templates (NMEA, MAVLink, MessagePack, SLIP, COBS, and more).
• New Themes: Added Fluent (dark/light), Rust, Gunmetal, and Midday themes.
• Performance Optimizations: Compiler flags and hot-path optimizations for faster data processing.
• Better Plot Controls: Dynamic tick intervals, improved cursor visibility, and theme-based cursor colors.
• Ribbon Toolbar: Modern ribbon-like toolbar in the main window.
• Enhanced Frame Parser: Test dialog improvements, template support, and retained previous values in JavaScript parser.

🐛 Bug Fixes

• Fixed FFT integer overflow in normalization.
• Fixed thread safety and race conditions.
• Fixed memory leaks in Dashboard timer management.
• Fixed non-deterministic crashes during initialization.
• Fixed High-DPI rendering issues in CSD and WindowManager.
• Improved Bluetooth LE device scanning and connection handling.
• Multiple UI consistency fixes and layout improvements.

📚 Documentation & Examples

• Added CAN Bus example with DBC database and Python ECU simulator.
• Added Modbus PLC simulator example.
• Improved documentation quality and code clarity.

💡 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
• Advanced plotting capabilities

👉 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

Full changelog: v3.1.10 → v3.2.0

⚙️ New features

• Point limit increased to 100K.
• Plot data is now downsampled to widget size.

This increments performance and reduces CPU/GPU load when handling lots of plot widgets.

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.

Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

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

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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

Full changelog: v3.1.9 → v3.1.10

🔧 Bug Fixes

• Switched Windows builds to MSVC 2022, restoring Bluetooth LE support.
• Dropped liquid-dsp in favor of KISS FFT for Fourier transforms, ensuring full MSVC compatibility.
• Minor bug fix while detecting data boundaries in 3D plot widget.

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.

Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

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

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• Share tutorials, videos, or forum posts.
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👉🏻 VALUE-FOR-LICENSE.md

Checksums

Full changelog: v3.1.8 → v3.1.9

🔧 New Features & Bug Fixes

• Added new audio I/O driver: capture signals from your system’s audio interface for tasks like testing analog circuits or using an external DAC as a basic oscilloscope.
• Allow users to set the target frame rate of dashboard widgets.
• Multiplot widget now automatically re-scales when a signal is shown or hidden.
• Re-implemented bar and gauge widgets with support for low/high alarm thresholds.
• Major performance and stability improvements in the data → GUI hotpath, using a separate thread for data parsing is no longer necessary. Verified stable at 96 kHz input data rates.
• Improved RAM management to maintain low usage even during multi-hour runs.
• Added customization options for dashboard taskbar button behavior.
• Added common shortcuts to the dashboard taskbar.
• Reorganized Project Editor fields for easier setup of new projects.
• Trial resets with every new release of Serial Studio Pro, if your 3.1.7 trial expired, upgrading to 3.1.8 grants another 14-day trial.
• Integrated LiquidDSP into the codebase, paving the way for features like data filtering and signal pre-processing before dashboard updates.
• Improvements to the FFT module, switched to a Blackman-Harris window function, implemented data normalization, and smoothing.
• Add support for SSE 4.1 instructions.
• Added new Light/Dark themes tailored for Windows 10 & macOS.
• Allow users to silence the Trial Dialog for better workflows.
• Changed application icon on Windows & Linux, added support for macOS Tahoe.
• Frame parser now skips empty frames, enabling safe patterns like:

function parse(frame) {
    if (validateData(frame))
        return parseData(frame);

    return [];
}

Screenshot with new bar/gauge widgets

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.
Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

👉🏻 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

⚠️ 14-Day Trial Notice

Official binaries now come with a 14-day trial.

If you’re using Serial Studio for work, please buy a Pro license.

If this change causes problems, you're welcome to open a discussion and speak up.

Checksums

Full changelog: v3.1.7 → v3.1.8

🔧 Bug Fixes & Improvements

• Rebuild map widget from scratch using ArcGIS/ESRI data
• Enabled trajectory plotting within the map widget
• Added optional cloud overlay to the map widget
• Fixed issue causing a black data table on the first frame
• Users can now configure the MQTT client ID
• Application now allows limited functionality after trial expiration

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.
Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

👉🏻 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

⚠️ 14-Day Trial Notice

Official binaries now come with a 14-day trial.
If you’re using Serial Studio for work, please buy a Pro license.
If this change causes problems, you're welcome to open a discussion and speak up.

Checksums

Full changelog: v3.1.6 → v3.1.7

🔧 Bug Fixes & Improvements

• Dashboard UI Stability: Prevent crashes and flickering when the data format changes while the dashboard is active. (#307)
• Project Editor: Fix bug when copying action structures.
• Console:
  • Add a "Send" button for mouse users.
  • Use IBM Plex Mono as the default font.
  • Fix layout issues when pasting large commands into the input field.
• Settings: Prevent crashes when switching language or theme while the dashboard is running.
• Multi-Plots: Enable toggling data curves via the legend box.
• Licensing & Builds:
  • Build a GPLv3-compliant version by default.
  • Pro/Commercial builds require a valid license key and instance ID.
• 14-Day Trial: The official binary now includes a free 14-day trial of Serial Studio Pro. After the trial expires, users can either subscribe or build the GPLv3 version. This helps sustain ongoing development and encourages community contributions.
• Accelerometer Widget: Show calculated G-force below the gauge for better visibility on small screens.
• Networking:
  • Prevent crashes from invalid DNS input.
  • Default to localhost if no address is provided.

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.
Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

👉🏻 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

Checksums

Full changelog: v3.1.5 → v3.1.6

🔧 Bug Fixes & Improvements

A minor bug fix release focused on stability tweaks and UI polish:

• Ironframe Theme: Introduced a new industrial-inspired theme for a more rugged, utilitarian look.
• Action Reset: Actions are now pre-generated in the dashboard only when Project Mode is enabled, avoiding unnecessary processing.
• Checksum Correctness: Fixed incorrect checksum byte order on Windows, caused by MSVC not supporting the __BYTE_ORDER__ macro.
• MiniOS Dashboard: Buttons now appear only for minimized or closed windows. Added quick-access shortcuts for pause/resume, console, and preferences.

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.
Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

👉🏻 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

Checksums

Full changelog: v3.1.4 → v3.1.5

🔧 Bug Fixes & Improvements

This is a minor bug fix release focused on data integrity and frame detection:

• Checksum Reset: Ensures the checksum logic is properly reset when switching operation modes.
• Frame Parsing: Resolves an issue where Start-delimited frames required at least one full frame plus a partial next frame to detect correctly, this caused unnecessary data loss and delayed reporting.
• SIMD: Fixes heap-buffer-overflow in fill/shift logic; restricts SIMD to double for safety.

💡 Serial Studio Pro is Here

You can now unlock Pro features with a license key via About → License Management.
Pro adds advanced widgets like the new 3D Plot and XY Plots, plus full MQTT support.

👉🏻 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

Checksums

Full changelog: v3.1.3 → v3.1.4