0.19.0

Added

• Added psycopg backend support.
• Added a new unified and robust connection management interface to access DB connections which includes support for lazy connection creation and much more. For more details, check out this PR.
• Added TimeField. (#1054).
• Added ArrayField for postgres.

Fixed

• Fix bulk_create doesn't work correctly with more than 1 update_fields. (#1046)
• Fix bulk_update errors when setting null for a smallint column on postgres. (#1086)

Deprecated

• Existing connection management interface and related public APIs which are deprecated:
• Tortoise.get_connection
• Tortoise.close_connections

Changed

• Refactored tortoise.transactions.get_connection method to tortoise.transactions._get_connection.
  Note that this method has now been marked private to this module and is not part of the public API