.. note:: Starting on v2.0, issue numbers with four digits refer to the old ticketing system at https://trac.ckan.org and the ones with three digits refer to GitHub issues. For example:

• #3020 is https://trac.ckan.org/ticket/3020

• 271 is https://github.com/ckan/ckan/issues/271

  Some GitHub issues URLs will redirect to GitHub pull request pages.

.. note:: v2.0 is a huge release so the changes listed here are just the highlights. Bug fixes are not listed.

Note: This version requires a requirements upgrade on source installations

Note: This version requires a database upgrade

Note: This version requires a Solr schema upgrade

Organizations based authorization (see :doc:/maintaining/authorization): CKAN’s new “organizations” feature replaces the old authorization system with a new one based on publisher organizations. It replaces the “Publisher Profile and Workflow” feature from CKAN 1.X, any instances relying on it will need to be updated.

• New organization-based authorization and organization of datasets
• Supports private datasets
• Publisher workflow
• New authorization ini file options

New frontend (see :doc:/theming/index): CKAN’s frontend has been completely redesigned, inside and out. There is a new default theme and the template engine has moved from Genshi to Jinja2. Any custom templates using Genshi will need to be updated, although there is a ckan.legacy_templates setting to aid in the migration.

• Block-based template inheritance
• Custom jinja tags: {% ckan_extends %}, {% snippet %} and {% url_for %} (#2502, #2503)
• CSS “primer” page for theme developers
• We’re now using LESS for CSS
• Scalable font icons (#2563)
• Social sharing buttons (google plus, facebook, twitter) (this replaces the ckanext-social extension)
• Three-stage dataset creation form (#2501)
• New paster front-end-build command does everything needed to build the frontend for a production CKAN site (runs paster less to compile the css files, paster minify to minify the css and js files, etc.)

Plugins & Extensions: * New plugins toolkit provides a stable set of utility and helper functions for CKAN plugins to depend on. * The IDatasetForm plugin interface has been redesigned (note: this breaks backwards-compatibility with existing IDatasetForm plugins) (#649) * Many IDatasetForm bugs were fixed * New example extensions in core, and better documentation for the relevant plugin interfaces: example_itemplatehelpers (#447), example_idatasetform (#2750), hopefully more to come in 2.1! * New IFacets interface that allows to modify the facets shown on various pages. (#400) * The get_action() function now automatically adds ‘model’ and ‘session’ to the context dict (this saves on boiler-plate code, and means plugins don’t have to import ckan.model in order to call get_action()) (#172)

Activity Streams, Following & User Dashboard: * New visual design for activity streams (#2941) * Group activity streams now include activities for changes to any of the group’s datasets (#1664) * Group activity streams now appear on group pages (previously they could only be retrieved via the api) * Dataset activity streams now appear on dataset pages (previously they could only be retrieved via the api) (#3024) * Users can now follow groups (previously you could only follow users or datasets) (#3005) * Activity streams and following are also supported for organizations (#505) * When you’re logged into CKAN, you now get a notifications count in the top-right corner of the site, telling you how many new notifications you have on your dashboard. Clicking on the count takes you to your dashboard page to view your notifications. (#3009) * Optionally, you can also receive notifications by email when you have new activities on your dashboard (#1635) * Infinite scrolling of activity streams (if you scroll to the bottom of a an activity stream, CKAN will automatically load more activities) (#3018) * Redesigned user dashboard (#3028):

• New dropdown-menu enables you to filter you dashboard activity stream to show only activities from a particular user, dataset, group or organization that you’re following
• New sidebar shows previews and unfollow buttons (when the activity stream is filtered)
  • New :ref:ckan.activity_streams_enabled config file setting allows you to disable the generation of activity streams (#654)

Data Preview: * PDF files preview (#2203) * JSON files preview * HTML pages preview (in an iframe) (#2888) * New plugin extension point that allows plugins to add custom data previews for different data types (#2961) * Improved Recline Data Explorer previews (CSV files, Excel files..) * Plain text files preview

API: * The Action API is now CKAN’s default API, and the API documentation has been rewritten (#357)

Other highlights: * CKAN now has continuous integration testing at https://travis-ci.org/ckan/ckan/ * Dataset pages now have <link rel=”alternate” type=”application/rdf+xml” links in the HTML headers, allows linked-data tools to find CKAN’s RDF rendering of a dataset’s metadata (#413) * CKAN’s DataStore and Data API have been rewritten, and now use PostgreSQL instead of elasticsearch, so there’s no need to install elasticsearch anymore (this feature was also back-ported to CKAN 1.8) (#2733) * New Config page for sysadmins (/ckan-admin/config) enables sysadmins to set the site title, tag line, logo, the intro text shown on the front page, the about text shown on the /about page, select a theme, and add custom CSS (#2302, #2781) * New paster color command for creating color schemes * Fanstatic integration (#2371):

• CKAN now uses Fanstatic to specify required static resource files (js, css..) for web pages
• Enables each page to only include the static files that it needs, reducing page loads
• Enables CKAN to use bundled and minified static files, further reducing page loads
• CKAN’s new paster minify command is used to create minified js and css files (#2950) (also see paster front-end-build)
  • CKAN will now recognise common file format strings such as “application/json”, “JSON”, “.json” and “json” as a single file type “json” (#2416)
  • CKAN now supports internalization of strings in javascript files, the new paster trans command is used to pull translatable strings out of javascript files (#2774, #2750)
  • convert_to/from_extras have been fixed to not add quotes around strings (#2930)
  • Updated CKAN coding standards (#3020) and CONTRIBUTING.rst file
  • Built-in page view counting and ‘popular’ badges on datasets and resources There’s also a paster command to export the tracking data to a csv file (#195)
  • Updated CKAN Coding Standards and new CONTRIBUTING.rst file
  • You can now change the sort ordering of datasets on the dataset search page

Deprecated and removed: * The IGenshiStreamFilter plugin interface is deprecated (#271), use the ITemplateHelpers plugin interface instead * The Model, Search and Util APIs are deprecated, use the Action API instead * Removed restrict_template_vars config setting (#2257) * Removed deprecated facet_title() template helper function, use get_facet_title() instead (#2257) * Removed deprecated am_authorized() template helper function, use check_access() instead (#2257) * Removed deprecated datetime_to_datestr() template helper function (#2257)