===================
Changed
-------
- **BACKWARD INCOMPATIBLE:** Use Postgres filtering instead of Elasticsearch
on API endpoints
- **BACKWARD INCOMPATIBLE:** Remove filtering by ``year``, ``month``, ``day``,
``hour``, ``minute`` and ``second`` on API endpoints
- Migrate docker images to Fedora 31
- Use ``DictRelatedField`` for ``collection`` field in ``RelationSerializer``.
In practice this fixes inconsistency comparing with how other serializers
handle collections field.
Added
-----
- Add a custom database connector to optimize queries and enable them to use
database indexes
- Add database indexes to improve search performance
- Add database fields and triggers for full-text search in Postgres
- Add support for annotating entities in processes
- Add support for Python 3.8
===================