V 1.03

Version 1.0.3 (2025-12)

CRITICAL FIXES:

• Fixed arithmetic overflow in sector calculations for disks >4GB
• Fixed use-after-free in QByteArray::fromRawData (changed to deep copy)
• Fixed division by zero in getNumberOfSectors
• Fixed buffer overflow in volume name construction
• Fixed uninitialized bytesread variable causing data corruption
• Fixed memory leak in on_bDetect_clicked partition check
• Fixed getDeviceID uninitialized data access

MEMORY LEAKS FIXED:

• TestModel objects leaked in partition detection loop
• sectorData leaked on error paths in read/write/verify
• slashify() allocation leak on error
• sectorData2 uninitialized pointer in destructor
• QFile not closed after hash generation

HANDLE LEAKS FIXED:

• hFile leak in on_bWrite_clicked error paths
• hFile leak in on_bRead_clicked error paths
• hVolume leak in on_bVerify_clicked error paths
• hRawDisk double cleanup with INVALID_HANDLE_VALUE
• Debug log file handle never closed

INTEGER OVERFLOW PROTECTION:

• Added overflow check in sector size calculations
• Added qint64->int bounds check in blob.mid()
• Added FLASHTYPE multiplication overflow protection
• Fixed progressbar range overflow (numsectors > INT_MAX)
• Fixed integer overflow in ElapsedTimer for long operations

LOGIC BUGS FIXED:

• spaceAvailable() returned TRUE on error (now returns FALSE)
• DBTF_NET flag check was always true
• QString NULL comparison (now uses isEmpty())
• indexOf(-1) validation before truncate
• Degenerate loop executing only once

SAFETY IMPROVEMENTS:

• Added QString.at() bounds checks (4 locations)
• Added QTextCodec NULL check with Latin-1 fallback
• Added clipboard null check before setText
• Added pDevDesc null check in enumeratePhysicalDrives
• Added TestModel virtual destructor
• Added TestModel::data() row bounds validation
• Fixed unaligned memory access using memcpy
• Fixed unsafe sprintf() usage with _snprintf_s

CODE QUALITY:

• Removed dead isDriveVirtual() function
• Removed commented/dead code blocks
• Added default case in nativeEvent switch
• Fixed memcmp return type (int, not unsigned long long)
• Initialized pID variable
• Fixed partial read/write validation

UI CHANGES:

• Version number now displayed in window title bar
• Fixed text clipping on high DPI displays (GroupBox title descenders cut off)
  Replaced QGroupBox titles with QLabel widgets to bypass Qt rendering bug

GUI MODERNIZATION (Windows 11 Style):

• NEW: Modern QSS stylesheet with Fluent Design aesthetics
• Accent color theme (#0078d4 blue) for primary actions
• Rounded corners (3px) on buttons, inputs, and progress bars
• Hover/pressed/disabled states for all interactive elements
• Read/Write buttons styled as primary actions with accent background
• Monospace font (Consolas) for hash display
• Modern table view styling with subtle gridlines
• Checkbox styling with accent color when checked
• Status bar with subtle top border

LAYOUT IMPROVEMENTS:

• Window now resizable (was fixed size)
• Minimum window size increased: 425x300 -> 520x400 pixels
• Improved margins (8px left, 12px top/right, 8px bottom)
• Consistent 6px spacing between elements
• Better visual hierarchy with grouped controls

TIMER DISPLAY:

• New format: "00:00:00" (hours:minutes:seconds)
• Always visible in status bar (removed show/hide)
• Tooltip shows "Elapsed Time"
• Migrated from deprecated QTime to QElapsedTimer

DEVICE DROPDOWN:

• Shows device size in GB for easier identification

BUILD & RELEASE (December 2054):

• 64-bit (x64) build support with MSVC2019/Qt 5.15.0
• Debug logging disabled by default (wrapped in #ifdef DEBUG_LOGGING)
• Fixed compiler warning C4101: removed unused cbBytesReturned variable
• Fixed compiler warning C4267: changed int to size_t for strlen result
• Updated copyright to 2009-2026
• windeployqt release packaging