General notes: * As with all patch releases this one does not include requirement changes. However in some scenarios you might encounter the following error while installing or upgrading this version of CKAN::

 Error: could not determine PostgreSQL version from '10.2'

This is due to a bug in the psycopg2 version pinned to the release. To solve it, upgrade psycopg2 with the following command::

 pip install --upgrade psycopg2==2.8.2

• This release does not require a Solr schema upgrade, but if you are having the issues described in #3863 (datasets wrongly indexed in multilingual setups), you can upgrade the Solr schema and reindex to solve them.

• 3422 (implemented in #3425) introduced a major bug where if a resource was

  deleted and the DataStore was active extras from all resources on the site where changed. This is now fixed as part of this release but if your database is already affected you will need to run a script to restore the extras to their previous state. Remember, you only need to run the script if all the following are true:

  1. You are currently running CKAN 2.7.0 or 2.7.2, and
  2. You have enabled the DataStore, and
  3. One or more resources with data on the DataStore have been deleted (or you suspect they might have been)

  If all these are true you can run the following script to restore the extras to their previous state:

  https://github.com/ckan/ckan/blob/dev-v2.7/scripts/4042_fix_resource_extras.py

  This issue is described in #4042

Fixes: * Fix toggle bars header icon (#3880) * Change CORS header keys and values to string instead of unicode (#3855) * Fix cors header when all origins are allowed (#3898) * Update SOLR schema.xml reference in Dockerfile * Build local SOLR container by default * Create datastore indexes only if they are not exist * Properly close file responses * Use javascript content-type for jsonp responses (#4022) * Add Data Dictionary documentation (#3989) * Fix SOLR index delete_package implementation * Add second half of DataStore set-permissions command(Docs) * Fix extras overriding for removed resources (#4042) * Return a 403 if not authorized on the search page (#4081) * Add support for user/pass for Solr as ENV var * Change permission_labels type to string in schema.xml (#3863) * Disallow solr local parameters * Improve text view rendering * Update Orgs/Groups logic for custom fields delete and update (#4094) * Upgrade Solr Docker image