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As of Grouper v2.5+ it is required to use the InCommon Trusted Access Platform packaging approach.

Report Grouper Security Concerns here

View the Grouper Demo

View the Grouper demo  (if you have issues registering for the demo, click here for info)

Current Grouper release is v2.6.x for version which receives enhancements

Read the Release Notes for Grouper 2.6

Current Grouper release is v2.5.x for non-enhancement version

Read the Release Notes for Grouper 2.5

Which version should be used

Use versionIn these conditions

You want new Grouper features as they are released
You have non trivial testing process on upgrades
Upgrade to latest stable v2.6.* at least every quarter
Upgrade to latest stable v2.6.* when security advisories are released
Using the Grouper Provisioning Framework
v2.5.*You want as little change/risk as possible when upgrading containers
(for OS / security / critical bug fixes)
You do not want to test thoroughly when upgrading
Upgrade to latest stable v2.5.* at least every quarter
Upgrade to latest stable v2.5.* when security advisories are released
Use PSPNG and other non-framework provisioners
v2.4.*Do not use
v2.3.*Do not use

Do not use

v2.1 or earlierSeriously?

Release components

Grouper in v2.5 is a container.  If your institution does not run containers regularly, it's ok, you can run Grouper without making investments in container orchestration.

For the Grouper container, which runs the Grouper UI, WS, daemon, scim, GSH, see:

New Features in Grouper 2.5

 Grouper 2.5 includes many helpful new features, as listed below, as well as the enhancements provided in Grouper 2.4 patches, such as visualization and reporting

The upgrade from 2.4.0 to 2.5 is not generally a major upgrade.  The database did not change much. 

You are required to use a container when running Grouper. This will ensure you have consistent directory structure, the correct version of libraries, and low risk and low effort upgrades.  There are instructions to make using the container as easy as possible.

Grouper source code
is on GitHub.

Previous Grouper Versions

For previous Grouper versions, click the link for the desired version:

2.4.0: 2.4.0 
2.3.0: 2.3.0
2.2.2: 2.2.2
2.2.1: 2.2.1
2.2.0: 2.2.0
2.1:, 2.1.3, 2.1.2, 2.1.1, 2.1.0
2.0: 2.0.3, 2.0.2, 2.0.1, 2.0.0
1.7: 1.7.0
1.6: 1.6.3, 1.6.2, 1.6.1, 1.6.0

Email Subscriptions

As an open source project, support is provided by means of the Grouper documentation wiki and open mailing lists. Grouper implementers are urged and welcome to subscribe to the following email lists:

  • Grouper-Announce mailing list, for important annoucements around security and releases.
  • Grouper-Users mailing list, which is an open support forum for deployment issues.
  • Grouper-Developers mailing list, for those interested in discussion of development issues.

To subscribe , see instructions here


Grouper is licensed under the Apache 2.0 license. See for a copy of this license.

Development of this software was supported with funding from Internet2, the University of Chicago, University of Pennsylvania, Duke University, University of Washington, University of Memphis, University of Bristol (UK), the NSF Middleware Initiative (NSF 02-028, Grant No. OCI-0330626,  Grant No. OCI-0330626, OCI-0721896, and OCI-1032468), and JISC. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).

See Also

Grouper v.2.4 Release Notes

v2.4 Upgrade Instructions from v2.3

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