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ARC 15.03 update 17


The Advanced Resource Connector (ARC) middleware is an Open Source software solution to enable distributed computing infrastructures with the emphasis on processing large volumes of data. ARC provides an abstraction layer over computational resources, complete with input and output data movement functionalities. The security model of ARC is identical to that of Grid solutions, relying on delegation of user credentials and the concept of Virtual Organisations. ARC also provides client tools, as well as API in C++, Python and Java.

Release notes

This is a bugfix release, addressing bugs discovered since release 15.03u16. Most work this time has happened in the ARC client. Se details below.

NorduGrid ARC 15.03 has received an update to:

core, clients, CE, Infosys and gridftp - from version 5.4.0 to 5.4.1 documents - from 2.0.17 to 2.0.18 Gangliarc, Nagios plugins and metapackages are unchanged.

Find more details at

dCache 3.1.21


dCache provides a system for storing and retrieving huge amounts of data, distributed among a large number of heterogeneous server nodes, under a single virtual filesystem tree with a variety of standard access methods.

Release notes

Detailed release notes on the official product site:

XRootD 4.7.0


XRootD software framework is a fully generic suite for fast, low latency and scalable data access, which can serve natively any kind of data, organized as a hierarchical filesystem-like namespace, based on the concept of directory. As a general rule, particular emphasis has been put in the quality of the core software parts.

Release notes

Detailled release notes at

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