Release Notes

General Info

Please always download the latest version of BackupChain after checking your license software maintenance period. Please contact sales for details.

If you use the Centralized Management feature, please update the computer that acts as the centralized console first, then update the connected computers. This avoids potential incompatibilities with the backup configuration. In addition, the software update can be distributed from the console itself.
To take a copy of your backup configuration, exit the BC Monitor app, shut down BackupChain Service in the Service Manager, and copy the entire folder C:\ProgramData\BackupChainService.

Version 4.1.5507

Removes two false error messages.

Version 4.1.5506

Please upgrade from 5504 at your earliest convenience.
Bug fixes: Zero-length files may cause unnecessary error counts with deduplication.
Improvements:
Sorted VM List in New Task Screen
Better handling of VM lists on hosts with more than 100 VMs
Cloud restore operations (full and increment/differential) now no longer need temporary files. Exception: ZIP and similar archive formats.

Version 4.1.5504

This version adds a new feature OS Disk Clone to a Bootable USB Drive. This allows the OS disk of a PC or Windows Server to be cloned to USB drive, which then is made bootable, so that you can boot your system directly from USB without having to restore anything. Cloning to USB was available before but this new feature prepares the USB drive to ensure it’s bootable.
Major speed improvements when using low-latency storage, such as NVMe, SSD.
ACL backup bug fixes: If you are backing ACL at the file level, please upgrade immediately as there were critical bugs fixed regarding ACL backup and restore.
Detection of potentially incompatible VSS providers.
Fixed unnecessary ReFS warnings.
ZIP verification improvements.
Bug fixes in error counts.
Bug fixes in ‘Run external utility after snapshot’.
‘No VMs selected’ warning bug fix
Max speed settings are now default in New Task screen.
Alphabetical ordering of Hyper-V VM list.
Privileges are required when connecting to a network share.
Mouse wheel: mouse wheel scrolling was leading to unintended changes in backup config. Now the mouse wheel is no longer affecting drop down lists.
Faster deduplication speeds for full backups (over 800MB/sec on low-end hardware)
Faster, single-scan incrementals (over 1.4 GB/sec on low-end hardware).
Faster speeds through more aggressive RAM caching, when sufficient RAM and CPU cores are available.
New deduplication file format (.FastNeuronDelta) version
Breaking changes: none

Version 4.0.5466

This installer requires a version 4 software license. License upgrades and renewals are available at a discount, please contact sales.
This new patch installer adds Windows Server 2025 support, TLS 1.2 / TLS 1.3 support, improves some UI portions with network folder/file access, and includes FIPS support.
Critical bug fixes are also included for Hyper-V restore operations (affecting Secure Boot, TPM) and parallel file server backups. Includes fix for FTP User list sort bug. If you use the built-in FTP server, or Hyper-V or file server backup with multiple files in parallel, please upgrade asap.
Additional bug fix in 5464: Delayed deletion period, if set to ‘0 sec’ will clean up immediately.

Simply install this build over your existing installation. There are no breaking changes.