v2.2.0-beta.1 (Beta)

Beta Release

This is a pre-release version for testing purposes.

This build may contain experimental features, bugs, or incomplete functionality.
Please report any issues you encounter on GitHub Issues.

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Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel-beta.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64-beta.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows-beta.zip
2. Extract the zip file
3. Run ultralog-windows-beta.exe

Linux

1. Download ultralog-linux-beta.tar.gz
2. Extract: tar -xzf ultralog-linux-beta.tar.gz
3. Run: ./ultralog-linux

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Note: Beta releases are not shown by default in the releases list.
Users must explicitly opt-in to view pre-releases.

Full Changelog: v2.1.3...v2.2.0-beta.1

v2.1.3

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

Full Changelog: v2.1.2...v2.1.3

v2.1.2

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

Full Changelog: v2.1.1...v2.1.2

v2.1.1

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

What's Changed

• Adds a number of updates to the GH pages site to improve its look and… by @SomethingNew71 in #38
• I18n - Full internationalization supporting 15 languages by @SomethingNew71 in #39

Full Changelog: v2.0.0...v2.1.1

v2.1.0

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

What's Changed

• Adds a number of updates to the GH pages site to improve its look and… by @SomethingNew71 in #38

Full Changelog: v2.0.0...v2.1.0

v2.0.0

UltraLog v2.0.0 Release Notes

Major Release - Complete UI Overhaul & Professional Analysis Tools

This is a major release featuring a completely redesigned user interface, powerful new analysis tools, and significant accessibility improvements.

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New Features

Complete UI Redesign

• VS Code-style Activity Bar - New vertical navigation with icon-based panel switching for Files, Channels, Tools, and Settings
• Reorganized Panel Layout - Cleaner, more intuitive organization with dedicated panels for each function
• Improved Tool Switcher - Pill-style tabs for switching between Log Viewer, Scatter Plot, and Histogram views
• Consolidated Settings Panel - All display, unit, normalization, and update settings in one accessible location

Histogram / 2D Heatmap View

• New Visualization Tool - Analyze channel relationships as a 2D heatmap grid
• Configurable Grid Sizes - Choose between 16x16 or 32x32 grid resolution
• Dual Display Modes - View average Z-value or hit count per cell
• Interactive Selection - Click cells to inspect detailed statistics
• Cursor Tracking - Real-time crosshair follows playback position
• WCAG-Compliant Colors - Dynamic text coloring for AAA accessibility compliance
• Heat Gradient Legend - Blue-to-red color scale with value range display

Professional Analysis Framework

A comprehensive suite of 14 analysis algorithms organized into four categories:

AFR Analysis

• Fuel Trim Drift Detection (CUSUM) - Detects systematic drift in AFR using Cumulative Sum algorithm
• Rich/Lean Zone Detection - Identifies and highlights rich and lean operating regions
• AFR Deviation Analysis - Measures deviation from stoichiometric with configurable targets

Derived Calculations

• Volumetric Efficiency - Estimates VE from MAP, RPM, and IAT using speed-density equations
• Injector Duty Cycle - Calculates IDC from pulse width, RPM, and injector flow rate
• Lambda Calculator - Converts between AFR and Lambda with fuel type support

Signal Filters

• Moving Average - Simple N-sample averaging for noise reduction
• Exponential Moving Average (EMA) - Weighted averaging with configurable smoothing factor
• Median Filter - Robust outlier rejection filter
• Butterworth Lowpass - Professional-grade IIR filter with configurable cutoff and order (1-8)
• Butterworth Highpass - High-frequency pass filter with SOS implementation

Statistics

• Descriptive Statistics - Mean, median, std dev, min, max, range, and coefficient of variation
• Correlation Analysis - Pearson correlation coefficient between any two channels
• Rate of Change - First derivative calculation with smoothing options

Analysis Tool Features

• Channel Selection Dropdowns - Tooltips show common ECU channel names for each analyzer type
• Results Display - Results prominently displayed at top of Analysis Tools panel
• Run & Chart Button - One-click analysis execution with automatic chart addition
• Min/Max Jump Buttons - Quick navigation to peak values for computed channels
• Computed Channel Indicator (ƒ) - Visual distinction between formula-based and raw channels

Accessibility Improvements

• Font Scaling - Four size options: Small (0.85x), Medium (1.0x), Large (1.15x), and Extra Large (1.3x)
• Scalable UI Elements - All interface elements respect font size preference
• Improved Readability - Enhanced text contrast and sizing throughout the application

New ECU Support

• Emerald ECU Parser - Full support for Emerald K6/M3D ECU log files
  • Parses .lg1 (binary data) and .lg2 (channel definition) file pairs
  • Supports 40+ channel types including TPS, MAP, Lambda, temperatures, pressures, and more
  • Automatic OLE timestamp conversion for accurate time synchronization
  • Proper scaling and unit conversion for all channel types

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Bug Fixes

• Linux Scaling Issues - Fixed DPI scaling problems on Linux systems (Issue #32)
• Windows Build - Fixed winresource compilation for paths containing spaces
• Visual Polish - Numerous small visual bug fixes and UI refinements
• Analysis Tool Stability - Bug fixes for analysis algorithms and test corrections

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Technical Changes

• New Module Structure - Added src/analysis/ module with sub-modules for each algorithm category
• New UI Components - Added activity bar, side panel, files panel, channels panel, tools panel, settings panel, and analysis panel
• Extended State Management - New state types for histogram, font scaling, active panel tracking
• Test Coverage - Added comprehensive tests for Emerald parser (878 lines of tests)
• Code Stats - 12,605 lines added, 966 lines removed across 55 files

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Supported ECU Systems

UltraLog now supports 8 ECU systems:

• Haltech (NSP CSV export)
• ECUMaster EMU Pro (CSV export)
• RomRaider (Subaru ECUs)
• Speeduino (MLG binary)
• rusEFI (MLG binary)
• AiM (XRK/DRK binary)
• Link ECU (LLG binary)
• NEW: Emerald K6/M3D (LG1/LG2 binary)

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Contributors

Thanks to everyone who contributed to this release!

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Full Changelog: v1.7.2...v2.0.0

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Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

What's Changed

• Version 2.0 - Huge UI Refresh and tons of new tools by @SomethingNew71 in #37

Full Changelog: v1.7.2...v2.0.0

v2.0.0-beta.1 (Beta)

Beta Release

This is a pre-release version for testing purposes.

This build may contain experimental features, bugs, or incomplete functionality.
Please report any issues you encounter on GitHub Issues.

---

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel-beta.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64-beta.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows-beta.zip
2. Extract the zip file
3. Run ultralog-windows-beta.exe

Linux

1. Download ultralog-linux-beta.tar.gz
2. Extract: tar -xzf ultralog-linux-beta.tar.gz
3. Run: ./ultralog-linux

---

Note: Beta releases are not shown by default in the releases list.
Users must explicitly opt-in to view pre-releases.

What's Changed

• Histogram Tool Support by @SomethingNew71 in #27
• Feature/analysis tools UI improvements by @Barneyjm in #28
• Adds UI font scaling to make the app more accessible by @SomethingNew71 in #29
• Initial restructure of UI to make it more clear and easy to use by @SomethingNew71 in #30

Full Changelog: v1.7.2...v2.0.0-beta.1

v1.7.2

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

What's Changed

• Adds some static C libraries to fix windows launch bug by @SomethingNew71 in #26

Full Changelog: v1.7.1...v1.7.2

v1.7.1

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

What's Changed

• Fixes the improper parsing of the romraider files by @SomethingNew71 in #24

Full Changelog: v1.7.0...v1.7.1

v1.7.0

Installation

macOS

1. Download the appropriate .dmg file for your Mac:
   • Intel Mac: ultralog-macos-intel.dmg
   • Apple Silicon (M1/M2/M3/M4): ultralog-macos-arm64.dmg
2. Open the DMG and drag UltraLog to your Applications folder
3. On first run, right-click the app and select "Open" to bypass Gatekeeper

Windows

1. Download ultralog-windows.zip
2. Extract the zip file
3. Run ultralog-windows.exe

Linux

1. Download ultralog-linux.tar.gz
2. Extract: tar -xzf ultralog-linux.tar.gz
3. Run: ./ultralog-linux

What's Changed

• Adds comprehensive test suite for all current logic (#22) by @SomethingNew71 in #23

Full Changelog: v1.6.0...v1.7.0