Differences
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2023-12-06 | 2023-12-06 | ||
6.2.1 Issue 52 – Use file hash as criterion for synchronization (martin) | checksum details (martin) | ||
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With //File size// checked two files are considered different when they have different sizes. The option is not available with //Both// direction selected. When using the option, you should avoid [[transfer_mode|text transfer mode]] as it may change the file size. | With //File size// checked two files are considered different when they have different sizes. The option is not available with //Both// direction selected. When using the option, you should avoid [[transfer_mode|text transfer mode]] as it may change the file size. | ||
- | With //Checksum// checked two files are considered different when they have different checksums. The option is not available with //Both// direction selected. &beta_feature | + | With //Checksum// checked two files are considered different when they have different checksums. The option is not available with //Both// direction selected. Requires [[protocols#checksum|support for calculating checksum]]. SHA-256 checksum is used by default, with automatic fallback to SHA-1, when not supported. &beta_feature |
When //Modification time// is checked along with any other the other two, it has higher priority. As a consequence, in the default //Synchronize files// [[task_synchronize_full#mode|synchronization mode]], a file is not considered updated, despite having different size or checksum, if the source file is older than the destination file. | When //Modification time// is checked along with any other the other two, it has higher priority. As a consequence, in the default //Synchronize files// [[task_synchronize_full#mode|synchronization mode]], a file is not considered updated, despite having different size or checksum, if the source file is older than the destination file. |