Sep 2025 - Thin Client 3.6.41 - x360Sync Release Notes

Written By Vitaliy Tarakanov (Administrator)

Updated at October 7th, 2025

Component

x360Sync Thin Client

Version

3.6.41

Release Date

September 30, 2025

Important Notes

  • The backend will soon stop supporting Client versions 3.5.2 and earlier. Please ensure that all your users have updated to Client 3.6.0 or newer to avoid any compatibility issues
  • For the best experience, we recommend always using the latest Client version. If auto-update fails on any device, the latest version can be downloaded at https://syncedtool.com/files/download/agent/

Ehnancements

  • Added support for ARM64 devices (e.g. Microsoft Surface). The installer is universal and automatically selects the appropriate components (x64 or ARM64) based on the device architecture
  • Thin Client now has cache limits and cache auto-cleanup to help users save disk space
    • Files that haven't been accessed for more than 180 days will be removed from cache automatically
    • By default, cache size limit is 10% of the disk size, but not less than 5 GB and not more than 100 GB. When the total size of cached files exceeds this limit, the files accessed longest time ago will be removed from cache automatically to keep it within the limit
    • Files with sizes exceeding the maximum cache size limit can still be downloaded when opened
    • Files that were accessed less than 2 hours ago are never removed automatically
    • Files explicitly selected for offline use by clicking "Always keep on this device" don't count towards the cache limit and aren't removed from cache automatically
    • User interface to control cache settings might be added in the future. In the meantime, if you need to adjust these settings, open the program folder in Program Files, then navigate to conf folder, open config.ini and add the following lines to the [cassia] section. After saving changes, restart the service or reboot your computer for new settings to take effect.
      • To set a fixed, non-calculated cache size limit, add maximum_cache_size_mb = 20480 (20 GB in this example) and adjust the value as needed
      • To use own values for calculated cache size limit, add cache_disk_size_percentage = 10 (10% by default), min_cache_size_mb = 5120 (5 GB by default) and max_cache_size_mb = 102400 (100 GB by default) and adjust the values as needed
      • To change how long not accessed files are kept before being automatically deleted, add auto_remove_cached_files_min = 259200 (180 days by default) and adjust the value as needed
  • Significantly improved the initial scan time when adding a new team share, backup or FSE mapping
  • Updated libraries for better performance and reliability

Fixes

  • Fixed a bug where periodic scan of FSE/Backup subscription didn't work as expected
  • Fixed a bug where synchronization could be failing after moving a file/folder into a folder that hasn't been synced up yet
  • Fixed a bug where the wrong Client version was displayed in status report, service output logs and GUI logs. This will help support with troubleshooting
  • Fixed a bug where local root subscription database inconsistency could cause Client to make excessive RPC calls, resulting in increased load on the backend
  • Fixed a bug where Client was unable to reconnect to the Server properly in some cases, causing permission denied errors and getting into a stuck sync state

Known Issues

  • Cache auto-cleanup currently doesn't remove partially downloaded cache that could accumulate when you navigate through folders and the operating system requests file thumbnails or other properties. In a future release, we will make such partial cache files smaller to save disk space; we will also include them in auto-cleanup. In the meantime, if you still observe large amounts of space used by cache, you can right-click on the folder representing a root (team share) and choose "Free up space".



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