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Changelog

All notable changes to Flasher are documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.0.0] - 2026-09-15

Added

  • Support for raw disk image formats: .iso, .img, and .raw.
  • Four stage visual workflow containing Image Source, Target Storage, Write & Verify, and Review & Confirm steps.
  • Interactive circular checkmark badges in sidebar navigation tracking completion status across each workflow stage.
  • Dedicated Review & Confirm erasure view detailing target device path, capacity, source file information, format pass mode, and post write checksum verification.
  • Comprehensive Preferences view managing write validation, media auto ejection, turbo mode, sleep prevention, single USB auto selection, desktop notifications, and completion chimes.
  • High speed buffer chunk allocation (4 MB) alongside standard 2 MB streaming for fast USB 3.0+ storage devices.
  • Surface scanning engine inspecting initial device sectors before writing to detect bad blocks and counterfeit media.
  • Zero out partition table pre wipe mode to clear legacy MBR and GPT partition structures before streaming images.
  • Dual formatting modes: quick sector erasure and full format zero fill with defect detection.
  • Windows physical disk sector alignment enforcing 512 byte boundaries with trailing block zero padding.
  • macOS character device acceleration mapping /dev/disk* nodes to unbuffered /dev/rdisk* character devices.
  • Multi algorithm integrity validation supporting sequential SHA-256 and MD5 checksum passes.
  • Automated partition unmounting orchestration across Linux (umount -l), Windows (mountvol /p and PowerShell dismount), and macOS (diskutil unmountDisk force).
  • System sleep prevention via power save blocking during active flashing and verification operations.
  • Hotplug drive monitoring polling removable storage every two seconds.
  • Operating system drive protection safeguards preventing destructive writes to internal OS volumes.
  • Clean desktop interface built with Electron 29, React 18, and TypeScript.
  • Complete SVG icon library with transparent avatar containers and custom hero illustrations.