ARSAS IEC 61850 workstation
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Latest stable · Windows x64 · published 18 July 2026

ARSAS 1.6.17: Verified updates and safer release delivery

ARSAS 1.6.17 adds a verified stable-update workflow, clearer user-controlled update handling, and reliability fixes around IED-card protocol actions and fault-record access.

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Verified stable publication · exact CI artifacts · SHA-256 available
Version1.6.17
Published18 July 2026
Installer50.9 MiB
Portable ZIP69.2 MiB
What’s new

Changes in the latest stable release

  • Verified in-app update checks use the official ARSAS manifest and accept only the official stable installer URL.
  • Downloaded installers are checked against the published byte size and SHA-256 before Windows is allowed to open them.
  • The update prompt shows download progress, supports a 24-hour defer action, and keeps installation under user control.
  • Release publication uses the exact installer and portable artifacts that passed CI hash verification and installer smoke testing.
Reliability improvements

Delivery and workflow hardening

  • Protocol capability actions were moved to a dedicated IED-card row so lifecycle controls remain visible.
  • Capability-state refreshes are marshalled safely to the WPF UI thread when discovery state changes in the background.
  • Installer, portable ZIP and a combined SHA-256 file are published together through the stable release channel.
  • The public updater manifest is refreshed only after verified publication evidence has been recorded.
Latest stable screenshot

Review the application before downloading.

The screenshot is representative of the published stable workspace and uses the same Windows product interface described in these release notes.

ARSAS 1.6.17 stable live-value workspace with IED, value, quality and timestamp evidence

1.6.17Stable Windows workspace

Representative ARSAS 1.6.17 stable workspace. Device identity, value, quality, timestamp and acquisition context remain visible together.

Known limitations

Read these before field use.

  • Windows x64 is the only packaged desktop platform in the current stable release.
  • The public binaries are not Authenticode code-signed; Windows SmartScreen may show an unrecognized-publisher warning.
  • Raw-Ethernet GOOSE and Sampled Values workflows require Npcap, an approved adapter and suitable capture permissions.
  • Relay file-service directories and COMTRADE companion sets vary by vendor; a successful transfer does not prove record completeness or scaling correctness.
  • Active control and report-configuration writes still require approved procedures, plant authority and independent verification.
  • ARSAS is an engineering evidence tool and does not provide IEC 61850 conformance certification or replace calibrated protection testing.
Code-signing status

Not Authenticode-signed

The current public Windows installer and portable binaries do not carry a commercial Authenticode publisher signature. Verify the published SHA-256 value before use. SmartScreen warnings are therefore possible and are not hidden from users.

Status: unsigned

A checksum verifies file identity against the published release evidence. It does not create a Windows publisher identity or replace Authenticode.

Found a release problem?

Report it with reproducible evidence.

Include the ARSAS version, package type, Windows version, exact error, relevant log or screenshot, IED/vendor context where appropriate, and whether the checksum matched.

Report an issueView GitHub release
Verified stable release

Download ARSAS 1.6.17 for Windows.

Use the installer for a normal workstation, choose the portable ZIP for a controlled folder deployment, and verify the published SHA-256 before use.

What’s new, limitations and signing status →
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