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The tables below detail the latest and recent feature releases for Hydra's gems, all of which are available from rubygems.org

Each documentation link will take you to the latest version of the documentation for a gem.  If you think a piece of documentation refers to an earlier release, please let us know at hydra-tech@googlegroups.com as soon as possible and we will arrange to correct it.  Documentation for earlier versions of gems can properly be found on the correct version page at rubygems.org.

We use semantic versioning:

  • Major number bumps for incompatible changes (2.3.1 ==> 3.0.0)
  • Minor number bumps for new features (2.3.1 ==> 2.4.0)
  • Point number bumps for bugfixes (2.3.1 ==> 2.3.2)

Bugfix versions are not individually listed below but the link should take you to the latest bugfix version in each feature release series.  Thus the link for a 3.4.x series might actually take you to version 3.4.2 - its latest bugfix.

NOTE: the version numbers of the different components in the Hydra stack (HydraHead, ActiveFedora, OM, Solrizer ...) are NOT synchronized.

One of the challenges of building a functioning Hydra stack has been knowing which versions of the various gems involved work together successfully.  The Hydra gem (at the top of the 'optional gems' section) now provides this assurance.  Instead of needing to identify and then list all the various gems in your Gemfile, instead add:

gem 'hydra', require: 'hydra6'

This will cause a complete, basic set of currently supported, compatible gem versions to be installed for you together with their dependencies.

Active Fedora

Gem version Link
9.7.02015-11-30https://rubygems.org/gems/active-fedora/versions/9.7.0
9.6.02015-11-03https://rubygems.org/gems/active-fedora/versions/9.6.1
9.5.02015-10-16https://rubygems.org/gems/active-fedora/versions/9.5.0
9.4.02015-09-03https://rubygems.org/gems/active-fedora/versions/9.4.0
9.3.02015-08-07https://rubygems.org/gems/active-fedora/versions/9.3.0
9.2.02015-07-09https://rubygems.org/gems/active-fedora/versions/9.2.0
9.1.02015-04-16https://rubygems.org/gems/active-fedora/versions/9.1.0
9.0.02015-01-30https://rubygems.org/gems/active-fedora/versions/9.0.0
Versions below this line are for use with Fedora 3; above it with Fedora 4
8.1.02015-05-18https://rubygems.org/gems/active-fedora/versions/8.1.0
8.0.02015-01-14https://rubygems.org/gems/active-fedora/versions/8.0.0
7.1.x2014-07-18http://rubygems.org/gems/active-fedora/versions/7.1.0
7.0.x2014-03-31http://rubygems.org/gems/active-fedora/versions/7.0.0
6.7.x2013-10-29http://rubygems.org/gems/active-fedora/versions/6.7.0
6.6.x2013-10-23http://rubygems.org/gems/active-fedora/versions/6.6.1
6.5.x2013-08-28http://rubygems.org/gems/active-fedora/versions/6.5.0
6.4.x2013-07-01http://rubygems.org/gems/active-fedora/versions/6.4.0
6.3.x2013-06-14http://rubygems.org/gems/active-fedora/versions/6.3.0
6.2.x2013-06-05http://rubygems.org/gems/active-fedora/versions/6.2.0
6.1.x2013-04-29http://rubygems.org/gems/active-fedora/versions/6.1.0
6.0.x2013-03-28http://rubygems.org/gems/active-fedora/versions/6.0.0
5.6.x2013-04-12http://rubygems.org/gems/active-fedora/versions/5.6.3
5.5.x2013-01-18http://rubygems.org/gems/active-fedora/versions/5.5.0
5.4.x2013-01-07http://rubygems.org/gems/active-fedora/versions/5.4.0
5.3.x2012-12-20http://rubygems.org/gems/active-fedora/versions/5.3.0
5.2.x2012-12-11http://rubygems.org/gems/active-fedora/versions/5.2.1
5.1.x2012-12-07http://rubygems.org/gems/active-fedora/versions/5.1.0
5.0.x2012-11-30http://rubygems.org/gems/active-fedora/versions/5.0.0
4.5.x2012-07-30http://rubygems.org/gems/active-fedora/versions/4.5.3

Documentation:  http://rubydoc.info/gems/active-fedora/frames

Hydra Head

Gem version Link
9.7.02016-02-06https://rubygems.org/gems/hydra-head/versions/9.7.0
9.6.02016-01-21https://rubygems.org/gems/hydra-head/versions/9.6.0
9.5.02015-11-11https://rubygems.org/gems/hydra-head/versions/9.5.0
9.4.02015-11-04https://rubygems.org/gems/hydra-head/versions/9.4.0
9.3.02015-10-07https://rubygems.org/gems/hydra-head/versions/9.3.0
9.2.02015-07-09https://rubygems.org/gems/hydra-head/versions/9.2.0
9.1.02015-03-06https://rubygems.org/gems/hydra-head/versions/9.1.4
9.0.02015-01-30https://rubygems.org/gems/hydra-head/versions/9.0.1
Versions below this line are for use with Fedora 3; above it with Fedora 4
8.0.02015-02-26https://rubygems.org/gems/hydra-head/versions/8.0.0
7.2.x2014-07-18http://rubygems.org/gems/hydra-head/versions/7.2.0
7.1.x2014-06-23http://rubygems.org/gems/hydra-head/versions/7.1.0
7.0.x2014-03-32http://rubygems.org/gems/hydra-head/versions/7.0.0
6.5.x2014-02-18http://rubygems.org/gems/hydra-head/versions/6.5.0
6.4.x2013-10-17http://rubygems.org/gems/hydra-head/versions/6.4.0
6.3.x2013-07-01http://rubygems.org/gems/hydra-head/versions/6.3.0
6.2.x2013-06-14http://rubygems.org/gems/hydra-head/versions/6.2.2
6.1.x2013-04-29http://rubygems.org/gems/hydra-head/versions/6.1.0
6.0.x2013-03-28http://rubygems.org/gems/hydra-head/versions/6.0.0
5.4.x2013-02-06http://rubygems.org/gems/hydra-head/versions/5.4.0
5.3.x2013-01-18http://rubygems.org/gems/hydra-head/versions/5.3.0
5.2.x2013-01-08http://rubygems.org/gems/hydra-head/versions/5.2.0
5.1.x2012-12-20http://rubygems.org/gems/hydra-head/versions/5.1.0
5.0.x2012-12-11http://rubygems.org/gems/hydra-head/versions/5.0.1
4.1.x2012-06-29http://rubygems.org/gems/hydra-head/versions/4.1.3
4.0.x2012-04-23http://rubygems.org/gems/hydra-head/versions/4.0.3
3.3.x2012-01-31http://rubygems.org/gems/hydra-head/versions/3.3.0

Documentation: http://rdoc.info/github/projecthydra/hydra-head

Jetty wrapper

Documentation:  http://rubydoc.info/gems/jettywrapper/frames

OM (Opinionated metadata)

Note:  Strictly, OM is an optional gem but is so widely used that we have included it in the main listing.

Documentation:  http://rubydoc.info/gems/om/frames

Rubydora

Documentation:  http://rubydoc.info/gems/rubydora/frames

Solrizer

Documentation:  http://rubydoc.info/gems/solrizer/frames

Solrizer-Fedora

Documentation:  http://rubydoc.info/gems/solrizer-fedora/frames

Optional gems

Hydra

Documentation:  http://rubydoc.info/gems/hydra/frames

Hydra-LDAP

Documentation:  http://rubydoc.info/gems/hydra-ldap/frames

Hydra tutorial

Documentation:  http://rubydoc.info/gems/hydra-tutorial/frames

Hydra-role-management

Documentation: http://rubydoc.info/gems/hydra-role-management/frames

Sufia

Gem version Link
6.6.02016-01-28https://rubygems.org/gems/sufia/versions/6.6.0
6.5.02015-12-11https://rubygems.org/gems/sufia/versions/6.5.0
6.4.02015-11-12https://rubygems.org/gems/sufia/versions/6.4.0
6.3.02015-08-12https://rubygems.org/gems/sufia/versions/6.3.0
6.2.02015-07-09https://rubygems.org/gems/sufia/versions/6.2.0
6.1.02015-07-02https://rubygems.org/gems/sufia/versions/6.1.0
6.0.02015-03-17https://rubygems.org/gems/sufia/versions/6.0.0
Versions below this line are for use with Fedora 3; above it with Fedora 4
4.3.x2014-12-17http://rubygems.org/gems/sufia/versions/4.3.1
4.2.x2014-11-25http://rubygems.org/gems/sufia/versions/4.2.0
4.1.x2014-10-31http://rubygems.org/gems/sufia/versions/4.1.0
4.0.x2014-08-21http://rubygems.org/gems/sufia/versions/4.0.0
3.7.x2014-02-07http://rubygems.org/gems/sufia/versions/3.7.0
3.6.x2013-12-18http://rubygems.org/gems/sufia/versions/3.6.1
3.5.x2013-12-05http://rubygems.org/gems/sufia/versions/3.5.0
3.4.x2013-11-06http://rubygems.org/gems/sufia/versions/3.4.0
3.3.x2013-09-25http://rubygems.org/gems/sufia/versions/3.3.0
3.2.x2013-09-10http://rubygems.org/gems/sufia/versions/3.2.1
3.1.x2013-08-20http://rubygems.org/gems/sufia/versions/3.1.1
3.0.x2013-08-09http://rubygems.org/gems/sufia/versions/3.0.0
2.0.12013-06-19http://rubygems.org/gems/sufia/versions/2.0.1
1.3.x2013-05-24http://rubygems.org/gems/sufia/versions/1.3.0
1.2.x2013-05-07http://rubygems.org/gems/sufia/versions/1.2.0
1.1.x2013-05-01http://rubygems.org/gems/sufia/versions/1.1.0
1.0.x2013-04-17http://rubygems.org/gems/sufia/versions/1.0.0

Documentation: http://rubydoc.info/gems/sufia/frames

Hydra collections

Documentation: https://github.com/psu-stewardship/hydra-collections/blob/master/README.md

Active_Fedora-Registered_Attributes

Documentation: http://rubydoc.info/gems/active_fedora-registered_attributes/frames

Curate

Gem version Link
0.5.x2013-11-14http://rubygems.org/gems/curate/versions/0.5.5

Documentation: http://rubydoc.info/gems/curate/frames

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