v3.4.0

Core

• Added the ability to restrict access to the admin site by IP address
• Added feature flags, managed via the admin site and exposed at /v3/feature-flag
• Scheduled the full Elasticsearch sync to run daily overnight using Celery
• Moved Elasticsearch index and mapping creation and updating from app start-up to a separate init_es management command
• Corrected various minor errors in search model and view definitions and added internal consistency checks to prevent recurrences
• Set the Elasticsearch dynamic mapping mode to strict to avoid hidden bugs due to data being silently discarded or silently added to the Elasticsearch mapping
• Removed unused Role metadata model and view

Contacts

• Corrected the company name filter so that it searches companies' trading names as well as their non-trading names

Interactions

• Added stricter validation for interactions to ensure data consistency
• Added created_on and modified_on as read-only fields in the admin site
• Corrected the company name filter so that it searches companies' trading names as well as their non-trading names
• Improved test coverage

OMIS

• Corrected the company name filter for orders so that it searches companies' trading names as well as their non-trading names

Internal changes

• Updated Python to version 3.6.5
• Update various dependencies
• Internal refactoring