FreeFileSync - Open Source File Synchronization

Open Source File Synchronization

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FreeFileSync Heart
FreeFileSync strives to provide high-quality software with zero open bugs. This is achieved by fast release cycles and free 24/7 support for everyone.
If you find FreeFileSync useful, please consider to support the project by donating.
Your donation will support the development of new features and help to keep up a continuous program maintenance. This ensures that FreeFileSync quickly adapts and always provides for the best performance in a constantly changing hard- and software landscape.
New: Donate and get the FreeFileSync Donation Edition with bonus features:
• ad-free installation   • auto-updater   • portable zip package
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Latest Changes

FreeFileSync 8.9
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Warn about outdated AvmSnd.dll before crashing during sound playback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