Release Notes
Track the live rolling-release platform as it expands. Release history is where we show what is already shipped instead of promising a one-time launch event.
Latest Release: v3.0.0
Released on February 5, 2026
Major architectural overhaul: all 718+ definitions embedded in executable, pre-flash safety validation, vehicle-aware UI, Boost Auto-Tune, and expanded vehicle support.
New Features
- Boost Auto-Tune: automated boost control optimization with stability analysis and per-RPM tuning
- Vehicle Context System: features automatically filtered by vehicle type (turbo/NA, MT/AT)
- Pre-flash safety validator: blocks wrong-ROM/wrong-ECU flash attempts
- Processor-aware patch system: SH2, RH850, and HC16 instruction encoding
- Kernel integrity validation: SHA-256 hash verification for all 24 flash kernels
- Checksum validation added to pre-flight checks
Improvements
- All 718+ XML definitions embedded in executable - no external files needed
- O(1) Cal ID lookup via VehicleDefinitionRegistry (was O(N) LINQ scan)
- Inheritance resolution at startup - parent tables merged into child definitions
- Patch conflict detection: blocks incompatible patch combinations
- Removed ~1,850 lines of skeleton definitions with fabricated addresses
Vehicle Support
- Levorg (2014-2020): 19 definitions, SH72543 Hitachi
- Crosstrek/XV (2012-2014): 6 definitions, SH7058
- 2022+ WRX VB (FA24DIT): early access coverage expanding
- 2015-2021 STI: 9 new definitions from SubaruDefs Alpha branch
- 13,780 tables propagated across 278 Cal IDs via automated scripts
Safety
- ROM size validation prevents flashing wrong-size ROMs to ECUs
- Processor family cross-check blocks wrong-architecture patches
- Blank/zeroed ROM detection prevents bricking ECUs
- Licensing display corrected in Consumer Mode
Major update with MAF/SD Blending Tool, secure credential storage, crash reporting, and auto-update system.
New Features
- MAF/SD Blending Tool for hybrid load calculation
- Secure credential storage with DPAPI encryption
- Crash reporting with user consent
- Auto-update system with background downloads
Improvements
- Improved installer with Start Menu and Desktop shortcuts
- Better error messages during flashing
- Enhanced table editor performance
Bug Fixes
- Fixed theme loading in Program Files installations
- Fixed logging parameter save/load issues
- Fixed occasional crash when closing table editor
Added Levorg and Crosstrek support, enhanced AutoTune with statistical outlier detection, and improved LiveTuning reliability.
Vehicle Support
- Added Levorg support (19 ROMs) - 2014-2020 JDM/EDM/ADM
- Added Crosstrek/XV support (6 ROMs) - 2012-2014
- Added 25 new BRZ market variant definitions
New Features
- AutoTune statistical outlier detection
- Optimized cell interpolation for faster learning
- Adaptive learning rate based on AFR rate of change
- Mode-specific tolerances (boost vs cruise)
Improvements
- LiveTuning connection heartbeat (2-second interval)
- Write coalescing to prevent queue exhaustion
- Robust write verification with exponential backoff
- Enhanced expression evaluator with more operators
BRZ/86/FR-S full support with 54 definitions, ROM cloud storage system, and web platform launch.
Vehicle Support
- BRZ/86/FR-S full support (54 definitions)
- 100% coverage for all available BRZ ROMs
- SH72531 processor support (1.25MB ROMs)
- Renesas flash protocol implementation
New Features
- ROM cloud storage system with Azure Blob Storage
- 1,044 stock ROMs available in normalized cloud storage
- Automatic ROM caching for offline use
- Web platform launch at pulsewidthtuning.com
Improvements
- Customer portal for vehicle management
- Tuner portal for professional tuners
- Admin dashboard for platform management
- Datalog visualization and analysis
Major release with complete UI overhaul, enhanced table editor, and improved performance.
New Features
- Complete UI overhaul with modern WinForms interface
- New table editor with 2D/3D visualization
- ROM compare and diff tools
- Table scaling and annotations
- Copy/paste between ROMs
Technical Improvements
- Optimized .NET Framework 4.8 runtime performance
- Improved memory management
- Faster ROM loading and parsing
- Better multi-threading support
Security
- Code signing for Windows SmartScreen
- Secure communication with cloud services
- Enhanced license validation
Stay Up to Date
PulseWidth includes automatic update notifications and public release tracking. Existing users can log in immediately, while new users can review features and pricing without mixed launch messaging.