Minor Release: Aspera High-Speed Transfer Server, High-Speed Transfer Endpoint, and Desktop Client 3.8.0 for Linux, Mac OS X, and Windows

Product Release: February 26, 2018

Updated: April 16, 2018

We are pleased to announce the release of version 3.8.0 of IBM Aspera High-Speed Transfer Server (formerly Enterprise Server and Connect Server), High-Speed Transfer Endpoint (formerly Point-to-Point Client), and Desktop Client for Linux, Mac OS X and Windows. This release provides a number of enhancements that span ascp, ascp4, Node API, Watch Folders, the Aspera Watch Service, and object storage support.




  • Desktop Client no longer requires a license. For upgrades to 3.8.0, existing licenses are overwritten with the unlimited license after a successful upgrade.
  • Windows 32-bit is no longer supported. During an upgrade to version 3.8.0, the configuration files are preserved but the old 32-bit version is removed from the system before the new version is installed.
  • A new post-transfer file validation process runs file validation once the transfer is complete, in contrast to existing inline validation methods. Out-of-transfer validation is also applied to files transferred by HTTP(S) fallback, unlike inline validation. Files that are being processed are reported by Aspera Central (and Faspex and Console) as "validating", and then "complete" once the validation completes.
  • ascp and ascp4 logging can now be configured in aspera.conf. (CIM-958)


  • Transfer sessions that fallback to HTTP now report file IDs in the management stream (as FaspFileID).
  • New configuration options are available when using stdio-tar:// as a destination or the source.

Ascp 4

  • The data-streaming capabilities of ascp4 (powered by FASPStream technology) are now available for High-Speed Transfer Server and High-Speed Transfer Endpoint users.
  • ascp4 now offers faster directory scanning on object storage and faster transfers to object storage, particularly for transfers that skip existing files (-k 1) or that use file lists.
  • Ascp4 transfers can now use transfer token authorization.

Node API

  • New permissions model allows user-specific permissions for file operations, grouped by access levels (edit, view, or none).
  • Transfer settings can now be configured at the access key level.
  • Access keys can now be backed up and restored by using new asnodeadmin options.
  • POST requests to /ops/transfers can now use AES-192 and AES-256 ciphers for encryption of data in transit.
  • POST requests to the /ops/transfers endpoint now supports additional ascp options in the transfer specification, including excluding files older than or newer than the specified time, preserving timestamps, and moving or deleting files after transfer.

Watch Folders and Aspera Watch Service

  • Watch Folders can now be created in "pull" mode, such that a folder on a remote host can be watched and automatically transfer files to the local computer. The remote host can be an Aspera server in object storage.
  • Watch Folders and the Aspera Watch Service now support cloud storage and URI docroots.
  • The Aspera Watch Service daemon now uses a single snapshot tree, which reduces memory requirements and simplifies watch configuration.
  • Watches and Watch Folders can now be created, managed, and deleted in the application GUI.
  • Watch Folders can now use access keys for authentication to remote storage. Remote sources (for pull Watch Folders) must have an Aspera Watch Service running. Access key authentication can be used for push Watch Folders with destinations of Aspera Files, Aspera Transfer Service, or Aspera Transfer Cluster nodes.
  • Watch Folders can be configured to use a specific Aspera Watch Service.
  • Watch Folders now supports AES-192 and AES-256 encryption.

Object Storage Support

  • Trapd is now available for Aspera High-Speed Transfer Server for Windows (64-bit), enabling on-premises Transfer Servers to connect to local object storage, or self-managed Transfer Servers in the cloud to connect to public object storage.
  • Transfers to Azure Data Lake Storage are now supported.
  • ascp and ascp4 transfers, and Watch Folder-initiated transfers to object storage can now include custom metadata if the object storage supports it (currently S3, Google, Azure, and Swift).
  • New documentation regarding configuring and initiating transfers with Alibaba Cloud storage is now included in the guide.



This 3.8.0 release is available for download for each individual product listed below. Aspera’s support team stands by ready to help you as needed with upgrades. If you have any questions or would like upgrade assistance, please contact support@asperasoft.com.

  • Aspera High-Speed Transfer Server 3.8.0 is available for download here
  • Aspera High-Speed Transfer Endpoint 3.8.0 is available for download here
  • Aspera Desktop Client 3.8.0 is available for download here



The release notes for v3.8.0 for Linux & Windows can be found here

The release notes for v3.8.0 for Mac OS X can be found here

Powered by Zendesk