v3.12.0

Features

• add context manager support in client (5ae4be8)
• add context manager support in client (#637) (5ae4be8)
• add support for python 3.10 (#626) (17ca61b), closes #623
• db_api: add an ability to set ReadOnly/ReadWrite connection mode (#475) (cd3b950)
• db_api: make rowcount property NotImplemented (#603) (b5a567f)
• db_api: raise exception with message for executemany() (#595) (95908f6)
• db_api: support JSON data type (#627) (d760c2c)
• db_api: support stale reads (#584) (8ca868c)

Bug Fixes

• db_api: emit warning instead of an exception for rowcount property (#628) (62ff9ae)
• deps: drop packaging dependency (5ae4be8)
• deps: require google-api-core >= 1.28.0 (5ae4be8)
• improper types in pagers generation (5ae4be8)

Performance Improvements

• dbapi: set headers correctly for dynamic routing (#644) (d769ff8)

Documentation

• list oneofs in docstring (5ae4be8)