FreeFileSync 13.0 [2023-09-12]

• Rename (multiple) files manually (F2 key)
• Configure individual directions for DB-based sync
• Detect moved files with "Update" sync variant (requires sync.ffs_db files)
• Update variant: Do not restore files that were deleted on target
• Distinguish file renames from file moves and simplify grid display
• Fixed ERROR_NOT_SUPPORTED when copying files with NTFS extended attributes
• Fixed error during process initialization while connecting with quick launch
• Avoid redundant file reopen when setting file times during copy
• Set working directory to match FFS configuration file when double-clicking (Linux)

FreeFileSync 12.5 [2023-07-21]

• Merge logs of individual steps (comparison, manual operation, sync)
• Show total percentage in progress dialog header
• Log and report errors during cleanup or exception handling
• Skip folder traversal if existence check fails for other side of the pair
• Automatically adapt batch options to prevent hanging a non-interactive process (Windows)
• Support path lists for external applications: %item_paths%, %local_paths%, %item_names%, %parent_paths%
• Create directory lock files with hidden attribute
• Don't clear other side when right-clicking file selection
• Fixed passive FTP when using different IP than control connection
• Work around FTP servers silently renaming unsupported characters of temporary file

This is the last free version for commercial use. You may find the discussion here.

FreeFileSync 12.4 [2023-06-20]

• Show dynamic error and warning count in progress dialogs
• Show process elevation status in title bar (Administrator, root)
• Fixed libcurl bug CURLE_URL_MALFORMAT for numerical host name
• Don't discard config panel last log after no changes found
• Set taskbar relaunch command to launcher executable (Windows)
• Fixed Btrfs compression not being applied during copy (Linux)
• Run on file systems with buggy GetFinalPathNameByHandle() implementation, e.g. Dokany-based
• Save selected view mode (F11) in batch config file

FreeFileSync 12.3 [2023-05-17]

• Add custom notes to sync configurations
• Highlight comparison and sync buttons
• Show sync stats in config panel tool tip
• Update config panel sync info even if cancelled
• Support FTP listing format missing owner/group
• Fixed "Class not registered" error during installation
• Propagate process priority of launcher executable
• Fixed config panel metadata being reset after renaming
• Fixed config panel keyboard cursor after deletion/rename
• Improved small icon resolution for high-DPI monitors

FreeFileSync 12.2 [2023-04-02]

• Fixed temporary access error when creating multiple folders in parallel
• Log failure to copy folder attributes as warning only
• Enable UTF-8, even if FTP server does not advertize in FEAT (vsftpd)
• Fixed drag and drop for non-ASCII folders (macOS)
• Explicitly detect MTP path without existence check
• Fixed crash when parsing SFTP package from stream
• Revert back to GTK2 build due to GTK3 hangs on KDE (Linux)
• Fixed missing COM initialization for MTP path parsing

FreeFileSync 12.1 [2023-02-20]

• First official build based on GTK3 (Linux)
• Allow cancel during folder path normalization (e.g. delay during HDD spin up)
• Fixed slow FTP comparison performance due to libcurl regression
• Open terminal with log messages on startup error (Linux)
• Preserve changed config during auto-update
• Save config during unexpected reboot (Linux)
• Preserve config upon SIGTERM (Linux, macOS)
• Fixed progress dialog z-order after switching windows (macOS)
• Removed packet size limit for SFTP directory reading
• Mouse hover effects for config and overview grid
• Always update existing shortcuts during installation (Windows, Linux)
• Fixed another "Some files will be synchronized as part of multiple base folders" false-negative

FreeFileSync 12.0 [2023-01-21]

• Don't save password and show prompt instead for (S)FTP
• Fast path check failure on access errors
• Support PuTTY private key file version 3
• Respect timeout during SFTP connect
• Removed 20-sec timeout while checking directory existence
• Avoid hitting (S)FTP connection limit for non-uniform configs
• Fixed middle grid tooltip icon not always showing (Linux)
• Optimized file accesses when checking file path existence
• Fixed overview navigation marker not always showing on main grid
• Clear all grid selections after view filter toggle
• Fixed mouse selection starting on folder group
• Don't require sudo during non-root installation (Linux)
• Stricter type checking when deleting file/folder/symlinks
• Succinct error messages when path component is not existing

FreeFileSync 11.29 [2022-12-16]

• Fixed crash after 1-byte file copy from MTP device
• Fixed incorrect installer z-order during auto-update (macOS)
• Compress copied file only if target folder is marked as NTFS-compressed (Windows)
• Show install errors without requiring access to "System Events" (macOS)
• Fall back to creation time if modification time is missing on MTP device
• Copy/paste filter config via operating system clipboard
• Show FreeFileSync startup error message when called from RealTimeSync
• Avoid server round trip when preparing summary email
• Show path conflict warning aggregated into groups
• Don't assume path conflict if single write and multiple ignored items
• Fixed CTRL + Insert clipboard copy for some text controls (Windows, Linux)

FreeFileSync 11.28 [2022-11-16]

• Recover from corrupted database file
• Save database files pair-wise as a transaction
• Fixed FTP access for Xiaomi "File Manager"
• Fixed filter full path detection for root directory (Linux/macOS)
• Fixed recycle bin double initialization bug (Windows)
• Fixed incorrect case-insensitive string comparison for i and ı
• Round progress percentage numbers down

FreeFileSync 11.27 [2022-10-17]

• Fixed a "Some files will be synchronized as part of multiple base folders" false-negative
• Fixed "Unexpected size of data stream" for Google Drive
• Fixed crash when downloading empty file from Google Drive
• RealTimeSync: fixed ffs_batch not accepted as valid configuration
• Fixed top buttons vertical GUI layout
• Fixed progress dialog font on Ubuntu MATE
• Support cut/copy/paste for filter settings
• Fixed free disk space calculation if target folder not yet created