Release Notes for NorduGrid ARC 6.10.1

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February 12, 2021

After the brief release of ARC 6.10.0 and the retraction quickly after, this release tackles the slowness encountered from the hashing code related to Bug 3980 (GDPR). We at the same time spotted a problem in the accounting code which also has been fixed, see Bug 3992.

Highlights in this release

There are two important updates in this release. The first handles the submitter information in regards to GDPR, and the second fixes a bug causing AREX to crash.

  1. Submitters certificate DN and GDPR (Bugzilla 3980).
    With ARC 6.10 the submitters DN is now exposed in a hashed format. This means that ARC no longer publishes the submitters DN in clear text and therefore complies with GDPR regulations. Note that the arcsync command from ARC clients version <= 6.9.0 will not work, as the DN's no longer will match. Updating the ARC client is required for arcsync to work.
  2. AREX crashes related to the security processing in AREX (Bugzilla 3978).
    Some sites experienced regular AREX crashes with the ARC 6.9.0 release. This was due to a bug in the code which handled the detection of failure in the security processing. This is now fixed.

In addition to these important changes, the release contains several other bugfixes and improvements as can be seen in the list of adressed Bugzilla tickets below.

The following Bugzilla tickets have been adressed or solved


The ARC 6 documentation can be found at this location.

If you miss something or have questions, please contact us!

Installing ARC 6

We recommend to install ARC release using the Nordugrid repository.

Note that if you instead install from EPEL for RHEL7 compatible systems, the ARC 6 packages can be found as nordugrid-arc6-* and not nordugrid-arc-*. This was needed in order to supply both ARC 5 already available for RHEL7 and the new ARC 6.

We provide binary builds for all supported versions of:

In addition we build nightly packages for older platforms.

Future Support of ARC 5-series

As of June 2020 no more security updates are provided to ARC 5. Also since the release of ARC 6 in June 2019, no more development on the ARC 5 code base has been provided.

Production Sites already running ARC 5 will still get operational site support in form of deployment and configuration troubleshooting help via GGUS until end June 2021. However, we may recommend upgrading to ARC 6 depending on the issues the site is facing.

ARC5 is available in EPEL7 and will stay there. EPEL8 will only contain ARC 6. To install ARC 6 from EPEL7 the package-names are of type: nordugrid-arc6-*

Getting in touch

If you need help with the configuration file or have any other questions related to ARC 6, please contact us via

Known issues

Previous releases

Details of previous releases can be found at the ARC Releases page

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