[AIRFLOW-XXX] Add message about breaking change in DAG#get_task_instances

[danmactough]

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Jira

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Description

Adds a note to UPDATING.md to describe breaking change to get_task_instances method of DAG.

@ashb

[ashb]

Thanks!

Sorry we missed this breaking change in the first place.

[kepta]

I think the BaseOperator's method get_task_instances is affected in this case and any class (like DAG) extending it would be affected:

airflow/airflow/models/baseoperator.py

Line 831 in d567f9a

def get_task_instances(self, start_date=None, end_date=None, session=None):

[danmactough]

I think the BaseOperator's method get_task_instances is affected in this case and any class (like DAG) extending it would be affected:

Yup. Updated in e9dd61198. Thanks @kepta.

[codecov-io]

Codecov Report

Merging #6226 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #6226   +/-   ##
=======================================
  Coverage   80.06%   80.06%           
=======================================
  Files         610      610           
  Lines       35261    35261           
=======================================
  Hits        28232    28232           
  Misses       7029     7029

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