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Version history for FreeFileSync

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Changes for v10.23 - v11.0

  • Revised file layout on main grid
  • Skip download/upload when copying Google Drive files inside account
  • Support moving Google Drive files between shared drives and My Drive
  • Support copying Google Drive shortcuts between accounts
  • Support copying Google Docs, Sheets, Slides, etc. within account
  • Fixed parsing uninitialized Google Drive modification time
  • Fixed Google Drive file already existing check running too late
  • Ignore slash/backslash differences during manual search
  • Avoid creating orphan database entry if one DB file fails to load
  • Limit modification time error count for log file warning message
  • Support copying WSL symlinks
  • Avoid duplicate MTP/Google Drive item creation from multiple threads
  • Fixed TMPDIR not found during startup (macOS)
  • Added sync variant icons
  • Avoid redundant icon format conversions
  • Buffer high-DPI image scaling results
  • Improved MTP thumbnail scaling performance
  • Avoid race condition during parallel file icon rendering (Linux)
  • Allow creating folder name with leading/trailing spaces
  • Start supporting GTK3 (Linux)



Changes for v10.22 - v10.23

  • Run "on completion" commands on console (no need for "cmd.exe /c")
  • Check exit code and report errors for external applications
  • Report stream output of failed command line calls (macOs, Linux)
  • Use Unicode symbols compatible with older macOS
  • RealTimeSync: invoke command using cmd.exe instead of ShellExecute (Windows)
  • Avoid hitting log file length limitations for aggregated jobs
  • Fix OpenSSL failing on HTTP 1.0 response without Content-Length
  • Don't allow creating folder names ending with space or dot
  • Support base folders with trailing blanks
  • Show system error descriptions on volume shadow copy errors
  • Raise exit code if saving log file or sending email failed
  • Report all documented MTP error descriptions
  • Updated default exclude filter (macOS/Linux)
  • Added image outlines for improved dark mode support
  • Work around WBEM_E_INVALID_CLASS error during installation
  • Align file path rendering with app layout direction
  • Play sound notification also when "cancel on first error" is set
  • Cleaner file path formatting (macOs, Linux)
  • Added instructions when failing to start due to missing GTK2 (Ubuntu)
  • RealTimeSync: distinguish drive unmount from folder change notification
  • Avoid blocking command scripts waiting for user input
  • Updated translation files



Changes for v10.20 - v10.22

  • Fixed upper-case conversion bug for non-ASCII strings
  • Preselect last-used email address
  • Select log file format (HTML or plain text)
  • Aggregate email notifications when hitting sending limits
  • Show code literals in system error messages
  • Limit conflict item count for log file warning message
  • Show log icon error indicator even if error occured after sync
  • Disable background drag & drop when showing modal dialog
  • Hide dummy model, vendor names in log files
  • Fixed ANSI encoding used for log file time formatting
  • Reduced memory consumption for large number of log messages
  • Correctly parse lock files despite corrupted trail data
  • Show emoji instead of Unicode icon in email subject
  • Fixed IWbemServices::ConnectServer error after sync
  • Fixed aggregate email logs incomplete truncation



Changes for v10.19 - v10.20

  • Send email notifications after sync
  • Generate log files in HTML format
  • Detect sync database consistency errors
  • Start log file with preview of first 50 errors/warnings
  • Mitigate lock file data corruption
  • Print Windows error codes in hexadecimal
  • Fixed missing MTP and network links in folder picker (Linux)
  • Display versioning and log folder path history
  • Display and log all config names for merged configurations
  • Run post-sync command synchronously and log exit code
  • Fixed crash on Bitvise SFTP servers with zlib delayed compression
  • Show actual time out used in failure message
  • Show detailed error message when failing to test sound files
  • Fixed timeout for long-running FTP uploads by sending keep-alives
  • Use Donation Edition on unlimited number of virtual machines
  • Ignore accidental clicks in empty space of configuration panel



Changes for v10.18 - v10.19

  • Unified rendering of disabled grid layouts
  • Count moved file pair as one update in view filter buttons
  • Fix command button default sizes (Windows)
  • Added %item_name%, %item_name2% context menu macros
  • Support deleting references to shared Google Drive files
  • Trash Google Drive files only when having single parent
  • Fixed high DPI scaling issue on image borders
  • Preserve system date format for RTL languages
  • Fall back to folder path if resource archives are missing



Changes for v10.17 - v10.18

  • Save/load database files in parallel
  • Show item count for each view filter category
  • Group config history items via background colors
  • Allow grid sort by category and sync action
  • Reduced file accesses for faster start up
  • Buffer redundant database loads
  • Fix ibus initialization hang on Ubuntu 19.10
  • Defer showing progress panel for short-lived tasks
  • Calculate stable scrollbar dimensions on GTK2
  • Log mod time errors even when sync is cancelled
  • Show progress and errors when updating sync directions
  • Detect MLSD support despite invalid FTP FEAT response
  • Improved GUI responsiveness during config load
  • Added Vietnamese translation



Changes for v10.16 - v10.17

  • Support PuTTY private key files for SFTP login
  • Enable zlib compression for SFTP servers if supported
  • Update last sync time despite differences if nothing to do
  • Reduce graph total time update interval
  • Remember folder history not just for first folder pair
  • Allow unprivileged symlink creation in Windows Developer Mode
  • Integrate latest libcurl FTP bug fixes
  • Detect common invalid SFTP key file formats
  • Fixed startup crash caused by corrupted HDD properties
  • Allow SFTP access via Ed25519 key in PKIX format



Changes for v10.13 - v10.16

  • Redesigned progress indicator graphs
  • Avoid needless HTTP delay prior to Google Drive upload
  • Skip redundant CWDs during FTP metadata updates
  • Fixed MLSD 501 syntax error on Serv-U FTP server
  • Check FTP server status using FEAT/HELP instead of root folder
  • Avoid redundant TYPE changes during FTP directory listing
  • Access FTP files by full path and avoid CWDs
  • Support FTP home paths with non-ASCII chars
  • Work around libcurl bug failing to buffer FTP TLS authentication
  • Skip redundant FTP SIZE check before downloading file
  • Use ISO 8601 week of the year definition for %week% macro
  • Show login prompt for disconnected NAS share
  • Force icon resolution to 96 DPI in GTK2 build (Linux)
  • Detect missing full disk access permission (macOS)
  • Fixed accessibility issue with progress graph colors
  • Use short naming convention when deleting abandoned folder lock
  • Detect endless folder lock recursion on buggy file systems
  • Fixed Google Drive parsing error for invalid file time



Changes for v10.12 - v10.13

  • Allow to rename configurations via context menu
  • Work around hang on SMB network with broken FileFullDirectoryInformation
  • Work around SMB share returning empty item name
  • Detect and preempt keyman64.dll crash on exit
  • Manage notification sounds via global options dialog
  • Support 32-bit Debian Jessie and later releases
  • Work around silent failure to case-only rename on FAT drives (Windows 10)
  • Simplified installation folder structure
  • Update main grid scrollbars when resizing columns on other side
  • Preserve input focus when clicking on grid column label
  • Buffer result of process path normalization
  • Mirror middle grid icons for RTL layout (Linux)
  • Force LTR layout until wxWidgets supports RTL (macOS)
  • Fixed pair scrolling mismatch when grid height is exceeded by one row
  • Fixed startup failure due to missing /etc/machine-id (Linux)



Changes for v10.10 - v10.12

  • Show sync start time and date in progress dialog title
  • Added duration of comparison to log
  • Show all total times in full HH:MM:SS format
  • Added sync start time to log file header
  • Add Windows Defender exclusions to fix CURLE_OPERATION_TIMEDOUT
  • New RealTimeSync option to hide console window
  • Support launching through symlink (Windows)
  • Dropped support for Windows XP, Server 2003, and Vista
  • Reduced installation size by 25%



Changes for v10.9 - v10.10

  • New option: synchronize selection
  • Dynamically disable unsuitable context menu options
  • Support MTP devices without move command
  • Fall back to copy/delete when implicitly moving to different device (e.g. symlink)
  • Fixed incorrect statistics after parallel move
  • Fixed menu button not triggering context menu
  • Fixed crash on focus change while message popup is dismissed
  • Fixed crash when trying to shrink empty image
  • Fixed invisible dialogs when monitor is turned off in multi-monitor setup
  • Work around GetFileInformationByHandle error code 58 on WD My Cloud EX
  • Changing deletion handling now correctly triggers updated config
  • Support root-relative FTP file paths (e.g. FreeNAS)
  • Move and rename MTP items as a transaction
  • Exclude AppleDouble files (._) via default filter on macOS
  • Support home path for FTP folder picker
  • Use server default permissions when creating SFTP folder
  • Use native OpenSSL AES-CTR rather than libssh2 fallback
  • Added context information for cloud connection errors
  • Updated translation files



Changes for v10.8 - v10.9

  • Added FTP, SFTP, Google Drive support for Linux
  • FreeFileSync Donation Edition available for Linux
  • Compress file stream during Google Drive upload
  • Navigate beyond access-denied parents in SFTP folder picker
  • Fixed unexpected stream size error during FTP upload
  • Support native recursive deletion for Google Drive
  • Support native recursive deletion for MTP
  • Deterministically save Google Drive state during exit
  • Work around missing TMPDIR variable (Linux)
  • Support SFTP servers returning large package sizes during folder reading
  • Start with home path when using SFTP folder picker
  • Aggregate device authentication prompts during comparison
  • Clean up temp file after unexpected stream size error
  • Work around FTP servers not supporting HELP command
  • Support parsing path by volume name when volume is missing
  • Parse and streamline Google Drive error messages
  • Load next item after deleting from config history
  • Avoid redundant Google Drive syncs after file/folder creation
  • Avoid duplicate MTP item creation by multiple threads



Changes for v10.7 - v10.8

  • Support synchronization with Google Drive
  • Keep sync directions when changing versioning/deletion
  • Save last sync time before shutting down system
  • Avoid dependency on file id to detect duplicate folders
  • Check if path exists before creating duplicate MTP folder
  • Check for empty MTP item name during folder traversal
  • Check if MTP items are referenced by the same path
  • Support MTP devices requiring modTime for file creation
  • Fixed sync config GUI distortion when toggling auto retry
  • Fixed FreeFileSync sort order in Windows Uninstall
  • Fixed log override path being squashed on high DPI
  • Fixed volume serial not considered when file id is missing



Changes for v10.6 - v10.7

  • Resolve ambiguous paths in (S)FTP folder picker
  • Fixed path alias check to not rely on volume serial
  • Check already existing move target by ID instead of path
  • Use native image conversion routines in installer
  • Added base folder info for unresolved conflicts message
  • Avoid silent failure when setting epoch modTime
  • Fixed parsing locale with unexpected format
  • Fixed RealTimeSync failing to start FreeFileSync batch
  • Exclude failed item paths containing backslash in names
  • Fixed RealTimeSync GUI distortion after drag & drop
  • Support command arguments and exit code with launcher
  • Consider UTF encoding when trimming long temp name during file copy



Changes for v10.5 - v10.6

  • Detect and skip traversing folder path aliases
  • Conflict when Unicode normalization forms differ
  • Unified 32 and 64 bit into single package (Linux)
  • Notarized application package (macOS)
  • Save configuration files in user-specific paths (Linux)
  • Use XDG-style config file paths (Linux)
  • Fixed (fake) intermittent hangs during comparison
  • Detect SMB mount points as separate devices (Linux)
  • Consider /mnt subfolders as device root paths (Linux)
  • Create missing default log folder upon first run
  • Don't consider final status for error/warning count
  • Discard invalid SFTP session after max channel test
  • Fixed main dialog position not being remembered
  • Fixed imprecise FTP times due to MLST parsing issue
  • Fixed application menu not being localized (macOS)
  • Fixed temp file name hitting file system length limitations
  • Fixed fatal errors not being written to console (Debian Linux)
  • Updated translation files



Changes for v10.3 - v10.5

  • New file matching considering Unicode normalization
  • User-configurable timeout for FTP and SFTP
  • Obsoleted old CHM manual in favor of PDF
  • Ignore case sensitivity during filter matching (Linux)
  • Unicode-normalized, faster case-insensitive grid search
  • New button to save current view filter settings as default
  • Both slash/backslash can be used in filter expressions
  • Improved Unicode case conversion routines
  • Keyboard shortcuts for swap sides (F10) and view (F11)
  • Don't steal focus when closing progress dialog (macOS)
  • Fixed shutdown crash when accessing destroyed state
  • Fixed file grid column order not being preserved
  • Fixed manual activation fields being disabled (macOS)
  • Fixed FTP parsing error due to invalid folder time
  • Fixed statistics boxes background distortion (macOS)



Changes for v10.2 - v10.3

  • New log panel showing details about the last operation
  • Show status of last syncs in configuration panel
  • Access log files via the configuration panel
  • Allow auto-retry and ignore errors during comparison
  • Show folder RealTimeSync is waiting on
  • New %logfile_path% macro for "on completion"
  • Show errors and warnings count in log file header
  • Fixed crash when resizing panel during comparison
  • Fixed folders created hidden when source is root
  • Use steady clock while waiting in RealTimeSync
  • Fixed folder access error with Google Drive File Stream
  • Open global log folder path via options dialog
  • Limit global logs by age instead of size
  • Deprecated batch-level log files and LastSyncs.log



Changes for v10.0 - v10.1

  • Binary-compare multiple files in parallel
  • Copy file permissions when creating base folders
  • Fixed hang when scrolling file list (Windows)
  • Fixed file list mismatch when cancelling sync
  • Fixed delay when cancelling folder existence check
  • Fixed sync processing order to honor FIFO
  • Fixed startup delay when internet is offline (Linux, macOS)
  • Fixed crash when closing via the macOS Dock
  • Support installation without admin rights (macOS)
  • Fixed bcrypt.dll not found on startup (Windows XP)
  • Respect Content-Length header for HTTP requests
  • Support parallel folder traversal on Ubuntu 16.4
  • Fixed missing shared library dependencies (Linux)
  • Unified precompiled Linux binary packages



Changes for v9.9 - v10.0

  • The installer is now ad-free!
  • Sync multiple files in parallel (Donation Edition)
  • Compare multiple files in parallel within a single folder tree
  • Aggregate worker threads per device during traversal
  • Reset GUI layout configuration for high DPI displays
  • Keep GUI responsive during synchronization
  • Remember maximum number of visible folder pairs
  • Fixed high DPI issues in installer
  • Don't delay errors by callback interval during comparison
  • Concurrent intermediate folder creation for versioning
  • Sync all folder level items before recursion (avoid CWDs)
  • Updated translation files



Changes for v9.8 - v9.9

  • High DPI display support
  • Allow automatic retry at configuration level
  • Show error handling settings during sync
  • Avoid libpng.so dependency (Linux)
  • Fixed undefined behavior closing paused progress dialog
  • Check if buggy DLLs are loaded into address space
  • Fixed FTP parsing error for Windows CE device
  • Workaround VSS provider implementation bug
  • Respect macOS user settings for date/thousands separator
  • Updated translation files



Changes for v9.7 - v9.8

  • New option to auto-close progress dialog
  • Update last sync time if no differences found
  • Added 5 seconds countdown before shutdown/sleep
  • Preserve XML attribute creation order
  • Support HTTPS web accesses without redirect
  • Connect network share upon logon type not granted
  • Fixed invalid pointer error when reading MTP
  • Fixed temporary db file triggering RealTimeSync
  • Fixed runtime error during uninstallation
  • Continue status updates during sync cancellation
  • Log number of items found during comparison
  • Warn about outdated nviewH64.dll instead of crashing
  • Show default log file path when saving a batch job
  • Consider only full days for time since last sync



Changes for v9.6 - v9.7

  • New configuration management panel
  • New column showing days since last sync
  • Support starting FreeFileSync via Windows Send To
  • Minimized memory operations for I/O buffer
  • Allow multiple config selections on Linux
  • New command line option -DirPair
  • Fixed ENTER key not working for most dialogs (macOS)
  • Show only one warning about failed directory locks
  • Show correct sync time when resuming from sleep
  • Don't resolve symlinks that are dropped via mouse
  • Detect and notify LCMapString compatibility mode bug
  • Fixed incorrect file permissions within macOS bundle
  • Fixed wrong results dialog panel selection (Linux)



Changes for v9.5 - v9.6

  • New installation command line option /disable_updates
  • Fixed crash when closing main dialog during sync
  • Fixed RealTimeSync crash after recursive mutex locking
  • Improved file copy performance on macOS
  • Clean up obsolete files during installation
  • Don't use threads for running async command line (Linux)
  • Avoid main dialog flash after minimized sync
  • Disable file list export until after comparison
  • Directly close progress dialog during sync
  • Redirect escape key from main dialog to progress dialog
  • Fixed startup delay during consistency checks
  • Updated translation files



Changes for v9.4 - v9.5

  • Allow to change error handling option on progress dialogs
  • Set up shutdown behavior during sync (summary, exit, sleep)
  • Conditional execution of the post sync command line
  • Directly use native shutdown/sleep API
  • Run post sync command even when fail on first error was set
  • Merged batch and GUI error handling options
  • Write post sync command to log file
  • Update GUI-specific options when saving as batch job
  • Progress graph area matches processed data ratio
  • Delete files permanently with Shift+Del
  • Apply correct quotation for CSV-exported folder list
  • Use Unicode arrow chars with ASCII for variant description
  • Updated libcurl, OpenSSL to latest builds



Changes for v9.3 - v9.4

  • Fixed copying files with locked byte ranges using VSS
  • Fixed wrong FTP working directory reuse in libcurl
  • Allow retry upon failure during online update check
  • Repackaged Donation Edition to reduce AV false positives
  • Apply correct directory path encoding during FTP traversal
  • Fixed strict weak ordering for SFTP session ID sorting
  • Clean up read-only temporaries during failed sparse file copy
  • Fixed access denied file copy error for ADS
  • Workaround broken SMB servers reporting sparse support
  • Support hash characters in FTP directory listing
  • Prepared auto-updater to support new installer format
  • Refined installer error reporting
  • Streamlined sync config dialogs
  • Resized installer window dimensions



Changes for v9.2 - v9.3

  • Support multiple connections per FTP folder traversal
  • 35% faster folder traversal for FTP servers supporting MLSD
  • Use single CWD when changing FTP working directory
  • Fixed EOPNOTSUPP error on gvfs-mounted FTP (Linux)
  • Maximize FTP I/O speed using prefetch/output buffers
  • Prevent input focus stealing after manual comparison
  • Use larger socket buffer for FTP upload speed increase
  • Fixed out of memory error when copying large files via FTP
  • New popup dialog option to ignore all errors
  • Reduced memory peaks by enforcing streaming buffer size limits
  • Removed custom sync directions from config XML if not needed
  • Flash task bar after comparison if other app has input focus



Changes for v9.1 - v9.2

  • Use direct copy instead of transaction to speed up versioning
  • Replaced file existing handling with use of unique temporary names
  • Support SFTP authentication via Pageant/SSH agent
  • New menu option to restore hidden panels individually
  • Fixed GTK button icon being truncated (Linux)
  • Fixed error dialog hiding behind progress dialog (macOS)
  • Round out FTP symlink deletion handling
  • Support four-digit year format on IIS FTP
  • Fixed FTP parsing error for epoch time on Windows server
  • Narrow contract for file system abstraction regarding existing files
  • Treat failure to load database as error rather than warning
  • Save root folder access for certain FTP path checks



Changes for v8.10 - v9.1

  • Fixed crash when getting invalid data after item type check
  • Fixed copying symlinks pointing to network folders
  • Support resolving network paths in the NT namespace
  • Support FTP servers with broken MLST command (Pure-FTPd)
  • Fixed FTP access error on file names containing special chars
  • Include raw FTP server response in error message
  • Quickly check server connection using a single FEAT
  • Don't change working directory when sending a single FTP command
  • Support FTP Unix listings missing group name
  • Support RFC-2640-non-compliant FTP servers having UTF8 disabled
  • Support FTP servers returning non-routable IP in PASV response
  • Support IPv6 when establishing FTP connections
  • Start external application keyboard shortcuts with zero



Changes for v8.9 - v8.10

  • Fully preserve case-sensitive file paths (Windows, macOS)
  • Support SFTP connections to local hosts
  • Warn if versioning folder is contained in a base folder
  • Use natural string sorting algorithm for item lists
  • Consider exclude filter settings for folder dependency checks
  • Fixed file not found error on case-sensitive SFTP volume
  • Fixed failure when creating MTP sub directories
  • Fixed crash when loading database file during comparison
  • Refactored UTF conversion routines
  • Use pipe symbol as filter separator instead of semicolon
  • Iterate over all matching SFTP connections available on a server (macOS)
  • Reduced folder matching time by 12%, average memory use by 11%
  • Added experimental FTP support



Changes for v8.8 - v8.9

  • Detect when database file was copied and avoid "second part missing" error
  • Further reduced size of database files by 20%
  • Reduced amortized number of file operations during versioning
  • Added database file consistency checks to catch unexpected number of stream associations
  • Improved file I/O by detecting cross-device moves via path
  • Fixed path parsing failure when creating MTP directories
  • Implemented buffered stream I/O abstraction to prepare for FTP
  • Generalized file path handling for abstract file system implementations
  • Warn about outdated AvmSnd.dll before crashing during sound playback
  • Avoid libunity9 dependency for Ubuntu builds
  • Refactored OpenSSL and libssh2 initialization/shutdown
  • Case-insensitive grid sorting on Linux
  • Added 32-bit precompiled Debian/Ubuntu release



Changes for v8.7 - v8.8

  • Distinguish file access failure from not existing during sync
  • Further optimized number of file I/O operations via file system abstraction
  • Report unexpected prompts for keyboard-interactive SFTP authentication
  • Mark followed directory symlinks on grid
  • Fixed parent path determination for UNC
  • Don't skip source files that cannot be accessed
  • Don't consider a symlink type for SFTP when comparing by content
  • Fixed invalid parameter error when setting file times on exFAT file system
  • Don't allow overwriting folder with equally named file when copying from main dialog
  • Fixed failure to create intermediate directories for Cryptomator/Webdav
  • Refactored file system abstraction layer for future FTP support
  • Fixed failure to change file name case on MTP devices
  • Fixed late failure for batch recycling when parsing of single item fails



Changes for v8.6 - v8.7

  • New auto-updater feature for FreeFileSync Donation Edition
  • Download zip archive of portable FreeFileSync Donation Edition
  • New command line options to define parameters for silent installation
  • Support offline activation for portable Donation Edition
  • Use automatic keyboard-interactive SFTP authentication as fallback
  • Check for available SFTP authentication methods before login
  • Support cloud sync of portable edition installation files
  • Access donation transaction details from about dialog
  • Use width from flexible grid column when showing/hiding extra columns
  • Show item short names in middle column tooltip
  • Enhanced file category descriptions with modification times
  • Don't warn about missing recycle bin when only moving or updating attributes
  • Fixed crash when switching to main dialog during batch sync



Changes for v8.5 - v8.6

  • Added SFTP support for OS X
  • Support SFTP authentication via public/private key
  • Remember configuration history scroll position
  • SFTP folder picker supports browsing hidden folders
  • Fixed failure to copy files with corrupted ADS
  • Signed application installer (OS X)
  • Increase config history default size to 100 items
  • Auto-close FreeFileSync processes before uninstallation
  • Simplified SFTP configuration syntax
  • Fixed update check sending incomplete keep-alive header
  • Detailed error reporting after failed web access
  • Suggest folder path macro substitutions also at inner positions
  • Transfer folder creation times (OS X)



Changes for v8.4 - v8.5

  • Support multiple SSH connections per SFTP folder traversal: N times speed up
  • Support multiple SFTP channels per SSH connection: additional N times speed up
  • Fixed installer crashes by using correct DEP-compatibility
  • Fixed notification area icon being generated too often
  • Thread-safe SFTP deinitialization on shutdown
  • Thread-safe mini-dump creation during shutdown
  • Fixed case-insensitive migration of new csidl macro names
  • Reduced SFTP access serialization overhead
  • Buffer SFTP sessions independently from usage context
  • Detect and discard timed-out SSH sessions
  • Pre-empt SFTP session disconnect via dedicated SFTP cleanup thread
  • Run SFTP tasks directly on worker threads without helper thread overhead



Changes for v8.3 - v8.4

  • Mark temporary copies created by %local_path% read-only
  • Fixed crash when accessing Bitvise SFTP Servers
  • Support nanosecond-precision file time copying (Linux)
  • Start maximized instead of in full screen mode (OS X)
  • Fixed crash while setting privileges during shutdown
  • Fixed crash when failing to clean up log files
  • Fixed EOPNOTSUPP error when copying file to gvfs Samba share (Linux)
  • Fixed default external applications command line (Linux)
  • Thread-safe translation change even during app shutdown
  • Don't consider port and password when comparing SFTP paths
  • Updated translation files



Changes for v8.0 - v8.1

  • Follow shell links during drag and drop on main dialog (Windows)
  • Significantly improved main grid rendering performance
  • Log info about non-default global settings
  • Establish new network connections only when needed (Windows)
  • Show only a single login dialog per network share
  • Show login dialogs for the same network address one after another
  • Fixed endless recursion for paths containing certain unicode characters (OS X)
  • Support using portable version without direct installation
  • Fixed access denied error when verifying read-only target file (Windows)
  • New global option for sound cue after comparison
  • Updated help file



Changes for v7.8 - v8.0

  • Fine-tuned buffer sizes for 70% improved SFTP stream I/O speed
  • Support incomplete read/write operations while maximizing buffer saturation
  • Automatically check consistency of FreeFileSync installation
  • Fixed crash when using SFTP on CPUs without SSE2 support
  • Improved GUI responsiveness during SFTP I/O
  • Disabled automatic quote substitution for file filter (OS X)
  • Work around invalid parameter error on FAT drives for broken create times
  • Avoid filter mismatches by using precomposed UTF (OS X)
  • Fixed main dialog close button not being disabled during sync (OS X)
  • Don't create AppleDouble files if extended attributes are unsupported (OS X)
  • Set content format metadata when copying to an MTP device
  • Fixed F-keys not working in sync config dialog (Linux)
  • Revert to default button margin values (Linux)
  • Fixed crash when thumbnail loading fails on MTP device
  • Fixed main grids not scrolling in parallel during mouse selection
  • Revert to default scaling for non-dpi-aware apps
  • Integrate FreeFileSync online manual
  • Added Slovak translation



Changes for v7.7 - v7.8

  • Correctly resolve environment variables containing MTP paths
  • Support at and colon characters in SFTP user name
  • New context buttons for quick sync config changes
  • Report specific error during folder existence check when starting sync
  • Fail lately when traversing available MTP devices
  • Correctly handle SFTP time-out error when checking folder existence
  • Updated on completion command lines for log off/standby/shut down (Linux)
  • Support HTML POST redirection for update checks
  • Calculate UTC file times like Windows Explorer for MTP devices
  • Don't reuse timed-out SFTP sessions with thread affinity
  • Workaround SFTP session hang after unsupported statvfs command
  • Updated OpenSSL to 1.0.2e



Changes for v7.5 - v7.7

  • Support variable drive letters for config history when using FreeFileSync portable
  • Skip non-storage functional objects at MTP device level
  • Log and show error messages without hanging when running as a service
  • Navigate between sync settings panels with arrow keys
  • Fixed volume shadow copy file path generation
  • Handle integer overflows when comparing file times
  • Ignore more than one file time shift
  • Reworked grid to support mouse highlight areas
  • Allow minute precision for file time shifts
  • Warn about unsupported MTP and SFTP paths in RealtimeSync
  • Strip superfluous mode parameters when creating a directory (Linux, OS X)
  • Correctly detect system language for English UK
  • Store program language by name to handle changing ids
  • Fixed crash during application exit after using SFTP



Changes for v7.4 - v7.5

  • Detect moved files on source even for targets with no (SFTP) or unstable (FAT) file id support
  • Improved performance for detection of moved files by over 50%
  • Added folder picker to select SFTP paths
  • Support additional SFTP ciphers by building upon OpenSSL backend
  • Added 10-seconds time out when SFTP command is hanging indefinitely
  • Work around unexpected SFTP session termination on Synology servers
  • Fixed various libssh2 and OpenSSL memory leaks
  • Fixed FreeFileSync taskbar link reuse (Windows 7)
  • Avoid last error code being overwritten by certain C runtimes before evaluation
  • Run online update check asynchronously (Windows)
  • Check source item existence before cleaning target during versioning (Linux, OS X)
  • Check folder recursion limit to catch stack overflows
  • Doubled potential folder traversal recursion depth (Windows)
  • Consider child elements of excluded folders during database clean up



Changes for v7.3 - v7.4

  • Switch between all folder pair configurations directly in the sync config dialog
  • Support macros, path by volume name for config files on command line
  • Support slash as path separator on command line (Windows)
  • Allow slash as path separator in filter dialog (Windows)
  • Discard SFTP connection after 20 seconds of idle time
  • Fixed file already existing error when changing file name case (OS X)
  • New keyboard shortcuts to open external applications
  • Fixed clipboard being cleared when opening sync config dialog (OS X)
  • Workaround wxWidgets bug breaking copy/paste shortcuts (OS X)
  • Fixed disabled button icons not being updated in the config dialog
  • Fixed launcher error messages not being shown (Windows XP)
  • Fixed launcher showing incorrect error about missing service pack (Windows XP)
  • Revised help file and consolidated into online help



Changes for v6.15 - v7.0

  • Support synchronization with MTP devices (Android, iPhone, tablet, digital camera)
  • Implemented file system abstraction layer
  • New database format supporting generic file ids
  • Pre-allocate disk space when writing file output stream
  • Late failure when moving multiple items to recycle bin
  • Keep UI responsive while loading/saving database file
  • Improved error reporting indicating failed item when moving to recycle bin
  • Transactional error handling when closing file streams
  • Pass correct thread id when creating Minidump (Windows)
  • Fixed directory icon loading resource leak (Linux)
  • Fixed RealtimeSync message provider exception safety issue (Windows)
  • Avoid locking issues by creating the log file after batch synchronization
  • Fixed RealtimeSync monitoring for items beyond subfolders (Linux)
  • Fall back to file extension during file icon load error
  • Show file icon by extension as temporary placeholder
  • Work around silent failure to copy file times to external drives (Linux)



Changes for v6.14 - v6.15

  • Revert to log file naming convention without colon character
  • Prevent endless recursion when traversing into folder on corrupt file system
  • Fixed view filter button rendering issue for RTL languages
  • Fixed grid losing far scroll positions when increasing icon sizes
  • Flush file buffers before verifying file copy
  • Update existing items when retrying failed folder traversal
  • Harmonized bitmap file loading by removing format variance
  • Fixed invalid argument error when setting file times (Linux)
  • Fixed application hang when loading icon for named pipe (Linux)
  • Improved file copy read-ahead performance (Linux)
  • Use native file I/O for stream operations (Linux, OS X)
  • Fixed file copy creating zero-sized files (OS X)
  • Automatically create Minidump files during an application crash (Windows)
  • Check for missing service pack to help diagnose crash (Windows 7)
  • New menu item with download link after a version update
  • Work around C-function memory race condition when formatting time
  • Added Hindi language



Changes for v6.13 - v6.14

  • New buttons allow changing the order of folder pairs
  • New keyboard shortcuts for rearranging folder pairs
  • Preserve comparison results when deleting a specific folder pair
  • Allow inserting new folder pairs into the middle of the list
  • Append status to log file names when warnings occur
  • Don't interrupt immediate comparison when starting a .ffs_gui file for slow devices
  • Work around wxWidgets bug eating up command keys in text boxes (Linux)
  • Fixed incorrect parameter error when checking recycle bin on drive mounted with Paragon ExtFS (Windows)
  • Use colon as time stamp seperator in log file names
  • Refactored basic low-level file traversal routine
  • Optimized file icon startup procedure
  • Fixed occasional failure to set modification times on Samba shares (OS X)
  • Transfer creation times during file copy (OS X)
  • Support copying file times with nano-second precision (OS X)



Changes for v6.12 - v6.13

  • Fixed crash when failing to create log file during batch run
  • Show directory traversal errors as conflict category on grid
  • Improved file filter behavior for certain edge cases when updating the database
  • Fixed crash when task scheduler ends FreeFileSync after a certain time (Windows)
  • Don't show alternative folder paths if volume name is empty
  • Support silent installation for Inno Setup (Windows)
  • Fixed recursive yield when minimized into notification area (Linux, OS X)
  • Include ACLs when copying file and folder permissions (OS X)
  • New file copy routine including extended attributes (OS X)
  • Fixed failure to permanently delete directories containing symlinks
  • Copy extended attributes when creating new folders and symlinks (OS X)
  • Restore process umask after creating lock file (Linux, OS X)
  • Copy directory permissions by default (Linux, OS X)
  • Optimized construction of merged path filters
  • Exclude items subject to traversal errors when updating the database



Changes for v6.11 - v6.12

  • New "Actions" menu bar entry with basic operations
  • Fixed crash after comparison while needlessly copying traveral results
  • Support auto-updater URL redirection (Linux, OS X)
  • Merged installer translations into .lng files
  • Fully translated FreeFileSync context menu options and file types in Windows Explorer
  • More structured symlink handling options
  • Scroll to active selection in config list box on startup
  • Fixed delete key to remove items in config history panel (OS X)
  • Fixed language file parser showing incorrect row on error
  • Fixed crash during sync due to unsupported SSE instructions (Server 2003, XP 64-bit)
  • Fixed startup error due to invalid handle type
  • Always log folder pair paths even if there is nothing to sync
  • Updated translation files



Changes for v6.10 - v6.11

  • Updated Recycle Bin access for Windows 10
  • New command line option "-edit" to load configuration without executing
  • Case-insensitive command line argument evaluation
  • New Explorer context menu options for ffs_gui, ffs_batch files
  • Added sync variant to folder pair info in log file
  • Don't process and log folder pair if nothing to do except writing DB file
  • Fixed liblzma.5.dylib not found during startup (OS X 10.8)
  • Added version info to application bundles (OS X)
  • Fixed incorrect warning when configuration contains empty folder pairs
  • Replaced misleading inotify error message "No space left on device" (Linux)
  • Fixed FreeFileSync launcher blocking app folder move (OS X)
  • Updated default main dialog layout
  • Fixed async error evaluation when creating volume shadow copies
  • Keep user interface responsive while creating a volume shadow copy
  • Fixed error when starting asynchronously from a batch script
  • Show progress of writing log files
  • Fixed updated file being left deleted when copying permission failed
  • New Project website: http://www.freefilesync.org/



Changes for v6.9 - v6.10

  • Fixed crash when accessing recycle bin in compatibility mode (Windows 7, 8)
  • Draw middle grid selection irrespective of focus column
  • Don't show parts of progress graph if nothing to sync
  • Break on missing directories before evaluating warnings
  • Ignore leading/trailing whitespace in search panel
  • Disable search panel during comparison
  • Disable shortkeys during comparison
  • Log folder pair only if files are synced
  • Fixed number separator formatting for english locale
  • Copying locked files now inactive by default
  • Show all affected folders when warning about a shared sub folder



Changes for v6.8 - v6.9

  • Reuse FreeFileSync taskbar link when available (Windows 7)
  • Limit number of retries when creating temporary files
  • Fixed bitmap rendering issue for high-contrast color schemes
  • Revised and fixed unclear GUI texts
  • Updated deprecated system call when suspending idle (OS X)
  • Fixed retry when failing to determine recycle bin status
  • Added progress graph legend
  • Updated translation files



Changes for v6.7 - v6.8

  • New comparison option to ignore file time shift in hours
  • Tentatively disabled DST hack affecting FAT file creation times
  • New menu option to reset gui layout
  • File sizes ignore sync direction in overview panel
  • Sort by file name also sorts folder names
  • Main grid column "full path" includes file name
  • Always position comparison progress below main buttons
  • Fixed high-precision tick count calculations
  • Fully restart directory traversal on errors
  • Updated help file with steps to schedule a batch job (OS X)



Changes for v6.6 - v6.7

  • Redesigned comparison progress statistics
  • Fixed crash when loading incompatible config file
  • Added button to config panel
  • Avoid sync progress dialog repositioning
  • Resolved crash when loading sync settings for Arabic locale
  • Restored cancel button width
  • Help window not forced to float over main dialog
  • Fixed overwriting old-format batch files
  • Harmonized view category sequence
  • Merged similar translation items
  • Fixed crash when scrolling help file without focus



Changes for v6.5 - v6.6

  • Fixed large font size standard button layout
  • Fixed config dialog graphics glitch with large font sizes
  • Exit FreeFileSync launcher process during update
  • Exclude temporary files from RealtimeSync monitor
  • Implement correct standard button spacing (OS X)
  • Fixed SELinux compilation issue (Linux)
  • Installer adds RealtimeSync link to desktop (Windows)
  • Improved makefile (Linux, OS X)
  • Reduced binary file size (Linux)
  • Updated translation files



Changes for v6.4 - v6.5

  • Support preview for RAW CR2 image files (Windows Vista and later)
  • Fixed startup exception when using task scheduler (Windows XP)
  • Correctly resolve SystemRoot NT path syntax for symbolic links
  • Fixed incorrect error codes being reported (Windows XP)
  • Fixed config dialog shortcut key presses getting lost (OS X)
  • Allow vertical layout for top button panel
  • Code cleanup: removed support for old database and XML config formats
  • Center sync progress dialog
  • Updated help file



Changes for v6.1 - v6.4

  • Combined comparison, filter and sync config dialogs
  • Support alternate GlobalSettings.xml file via command line
  • Toggle between config panels with F6, F7, F8
  • Show config status icons in notebook panel caption
  • Redesigned configuration dialog layouts
  • Fixed startup error after moving installation directory
  • Fixed retry on failure to resolve path by volume name
  • Resolved ERROR_ALREADY_EXISTS when creating temporary recycle bin subdirectory
  • Added "save as gui job" button on main dialog
  • Added Bulgarian language
  • FreeFileSync 6.3 [2014-03-01]
  • -----------------------------
  • No wait time anymore while searching for recycle bin (Windows Vista and later)
  • Revised synchronization progress graph
  • Clean up "On completion" considering last usage
  • Fixed CTRL + C keyboard short cut in filter dialog (OS X)
  • Resolved static initialization order issues
  • Reduced disk accesses when resolving directory name
  • Added view filter labels
  • Updated translation files
  • Updated help file
  • FreeFileSync 6.2 [2014-02-01]
  • -----------------------------
  • New synchronization progress graph
  • Skip binary comparison for files excluded via time span or size
  • Fixed configuration panel ordering for entries starting with numbers
  • Filled gap after last grid column to cover full window width
  • Workaround wxWidgets image button bug showing obsolete disabled state
  • Refined file existence checks to handle restricted permissions
  • Disable file filter button during comparison
  • Fixed mouse wheel grid scrolling for GTK2 (Linux)
  • Avoid dummy texts during progress dialog init (OS X)
  • Translated external application default commands in global settings
  • Support cancel while encoding extended time information
  • Highlight non-zero synchronization statistics



Changes for v6.0 - v6.1

  • Released RealtimeSync for OS X
  • Handle errors loading reference batch config
  • Disable user mode exception swallowing for Windows 7 SP1
  • Always exclude root nodes on manual selection when excluded items are hidden
  • Fixed showing duplicate custom "on completion" commands
  • Close old directory handle first before executing directory traversal fallback
  • Show negative batch synchronization result in log file name
  • Avoid file system race when creating temporary files
  • Transfer creation and modification times on folder creation
  • Fixed empty main dialog configuration migration issue on Mac OS X



Changes for v5.23 - v6.0

  • Revised main dialog panel layout
  • Show arrow icon for shortcut files and symlinks
  • Execute the "on completion" command asynchronously
  • Resolved invalid grid background when context menu is shown
  • Set negative file time tolerance to disable file time check
  • Optimized sequence of steps when saving database files
  • Prevent temporary incorrect statistics after unexpected increase in workload
  • Fixed default height when mixing panels with and without caption on main dialog
  • New view filter button "show excluded items"
  • New keyboard shortcuts for file filter and sync settings
  • Removed libpng15.so dependency for openSUSE 13.1
  • Updated help file
  • Updated translation files



Changes for v5.22 - v5.23

  • Allow sorting root nodes on overview panel
  • Support retry on failure to resolve path by volume name
  • Copy high-precision modification times for files and symlinks
  • Align top panel height with comparison and sync buttons
  • Show lock owner while waiting on a locked directory
  • Resolved help file W3C validation issues
  • Fixed high contrast accessibility issues in help
  • Fixed crash for CPUs without SSE2 when using VSS (Windows XP)
  • Prevent progress statistics timer overflow
  • Save RealtimeSync settings before forced exit due to shutdown or log off
  • Resolved contract violation error due to out of memory
  • RealtimeSync does not block system shutdown anymore
  • Added "select all" context menu option for progess log
  • Handle progress log keyboard input ignoring input focus
  • Fixed category icon background color issues
  • Report error when reading active config file failed during save
  • Preload adjacent file icons on grid



Changes for v5.21 - v5.22

  • New options for automatic retry after error
  • Improved compliance with Windows User Experience guidelines
  • Harmonized popup dialog layouts
  • Correctly show program menu when main dialog receives focus (OS X)
  • Revised configuration dialog layouts and designs
  • Fixed crash on startup for CPUs without SSE2 support (Windows XP)
  • Work around wxWidgets bug for sorted list boxes (Linux)
  • Updated and revised help file
  • Early parameter validation for filter and sync config dialogs
  • Fixed followed directory symlinks being incorrectly excluded
  • Automatically calculate best initial message box size
  • Progress graph and status icons support high contrast color schemes
  • Include directory child-elements when manually setting filter
  • Allow manual filter for short name on overview panel
  • Don't treat file drops on directory input fields as URI (Linux)
  • Updated translation files



Changes for v5.20 - v5.21

  • Detect moved/renamed files in mirror and custom variants
  • New database format for two way variant: old database files are converted automatically
  • Support double-clicking ffs_gui/ffs_batch files (OS X)
  • Integrated search panel (Ctrl + F, F3) into main dialog
  • Merged variant names into top button labels
  • Hide dock icon while minimized to notification area (OS X)
  • New keyboard shortcuts: F5, F6, F7, F8, F9, F10
  • Further reduced size of database files by 10%
  • Fixed Outlook *.ost files found missing on VSS snapshot volumes
  • Added include filter context menu option
  • Correctly scroll to search hits on different grid
  • Always remove .ffs_tmp files permanently
  • Fixed layout for buttons with text and graphics for RTL languages (Arabic, Hebrew)
  • Revised file filter parser: new syntax for excluding items in subdirectories
  • Improved configuration merge algorithm
  • Fixed crash when showing help due to wxWigets 64-bit bug in help component (Windows 8)
  • Avoid progress dialog graph flicker during resize when too few samples are available
  • Progress status when deleting files not greyed out anymore
  • Increased time-out to 20 seconds when checking for directory existence
  • Exclude broken symlinks via filter before showing error message
  • Follow symlinks when checking file/directory existence (Linux)
  • Consistently set batch error codes during startup phase
  • Updated translation files



Changes for v5.19 - v5.20

  • Fixed crash on startup due to wxWigets 64-bit bug in font enumeration (Windows 8)



Changes for v5.16 - v5.19

  • Redesigned progress dialog including new items graph
  • New command line syntax: set directory names of a .ffs_gui/.ffs_batch externally
  • Explicit button on progress dialog to minimize to systray
  • Fixed progress graph labels being truncated (Debian, Ubuntu, openSUSE)
  • Resolved main dialog z-order issues during sync (OS X)
  • Reduced progress dialog layout twitching
  • Further improved comparison speed by 10%
  • Use proper config file path in file picker dialog (OS X)
  • Never interrupt when updating a file with fail-safe file copy after target was deleted
  • Prevent crash when closing progress dialog while paused (OS X)
  • Support external command lines starting with whitespace (Windows)
  • Show warning before starting external applications for more than 10 items
  • Start external applications synchronously if needed to avoid running out of system resources
  • Don't show hidden progress dialog when showing an error message in silent batch mode (OS X)
  • Correctly show file names containing ampersand characters in progress dialog
  • Adapt size of results dialog to fit contents
  • Correctly execute file move before parent directory will be deleted
  • Show a blinking system tray icon on errors instead of a modal dialog in RealtimeSync
  • Added installation size for Windows' Add/Remove Programs
  • FreeFileSync 5.18
  • -----------------
  • Work around boost 1.54 bug "The procedure entry point GetTickCount64 could not be located in the dynamic link library KERNEL32.dll" (Windows XP)
  • FreeFileSync 5.17
  • -----------------
  • Consider target file when updating followed file symlinks
  • Support moving files to recycle bin contained in followed directory symlinks
  • Move instead of copy updated files into versioning directory
  • Reduced memory peak when loading large database files after comparison
  • Check recycle bin existence only once per base folder and only if deletions occur (Windows)
  • Revised and enhanced error messages
  • Show moved files in same category as updated files
  • More pessimistic calculation of required disk space reducing false positives
  • Implemented platform-specific standard button ordering (Linux, OS X)
  • Set configuration panel primary orientation to vertical
  • Added new checks and error message strings for translation file parser
  • Revised middle grid inactive color and duplicate equality symbol
  • Skip XML comments while parsing config files
  • Redesigned confirmation popup dialogs
  • Standard button spacing conforms to operating system conventions
  • Shrinked memory consumption of file hierarchy data structures
  • Don't show file deletion dialog if selection is empty
  • Fixed incorrect progress statistics if a file or directory is deleted externally after comparison
  • Focus grid cursor row after switching sides with keyboard direction keys
  • Improved localization process: find translation deltas more easily, better error reporting
  • Reset initiated grid selection when changing grid cursor
  • Improved sync progress dialog layout
  • Suppress dubious wxWidgets error message "locale 'es_AR' can not be set". (OS X)
  • Don't show busy cursor on synchronization results dialog
  • Log error message upon retry as type info only
  • Updated translation files



Changes for v3.13 - v3.14

  • New keyboard shortcuts: F5: compare F6: synchronize
  • Skip to next folder pair if fatal error occured (instead of abort)
  • Reload last selected configuration on startup
  • Abort with error when copying to empty directory field
  • Full log information after comparison (including file transfer)
  • Check read access for source file before overwriting target
  • Fixed possible application crash after comparison
  • Fixed possible network freeze when comparing
  • Maximum number of logfiles can be specified
  • Don't condense whitespace when loading XML configuration
  • RealtimeSync: Put executable name in quotes when parsing *.ffs_batch file
  • Large program icons - 256 x 256
  • Handle daylight saving time(DST) on FAT network shares
  • Skip DST handling if drive does not support accurate file times
  • Many small GUI/usability fixes
  • Added Korean translation



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