BestSync 2026 Version History

squareBestSync (Latest Versions)

Ver 21.0.0.1

  • Added support for TLS session reuse on FTP data connections, which is required when connecting to FileZilla Server.
  • Fixed an issue on Windows 11 where the folder browser dialog could crash while browsing folders.
  • Fixed an issue where encrypted task settings files might not be decrypted correctly, causing an "Invalid setting file" error.
  • Improved the portable version so that task settings are loaded at startup.
  • Improved performance and reliability when browsing shared folders.
  • Fixed a bug when reading and writing the .INI file.
  • Other minor improvements and fixes.
  • BestSync 32Bit/64Bit Version, BestSync Portable (32Bit), BestSync Portable (64Bit)

BestSync Old Version History

squareBestSync Old Version (BestSync 2025Version 20.x)

squareBestSync Old Version (BestSync 2024Version 19.x)

squareBestSync Old Version (BestSync 2023Version 18.x)

squareBestSync Old Version (BestSync 2022Version 17.x)

squareBestSync Old Version (BestSync 2021Version 16.x, The last version that supports XP/WS2003)

squareBestSync Old Version (BestSync 2020Version 15.x)

squareBestSync Old Version (BestSync 2019Version 14.x)

squareBestSync Old Version (BestSync 2018Version 13.x)

squareBestSync Old Version (BestSync 2017Version 12.x)

squareBestSync Old Version (BestSync 2016Version 11.x)

BestSync 2015 and earlier versions are no longer supported, please upgrade to the latest version.
BestSync has been significantly improved since your old version. We recommend you to upgrade to the latest version as soon as possible for better data protection and user experience.