turbaszek commented on a change in pull request #12605:
URL: https://github.com/apache/airflow/pull/12605#discussion_r530221863
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File path: UPDATING.md
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@@ -52,6 +52,14 @@ assists users migrating to a new version.
## Master
+### `[scheduler] max_threads` config has been renamed to `[scheduler]
parsing_processes`
+
+From Airflow 2.0, `max_threads` config under `[scheduler]` section has been
renamed to `parsing_processes`.
+
+This is to align the name with the actual code where the Scheduler launches
the number of processes defined by
+`[scheduler] parsing_processes` to Parse DAG files, calculates next DagRun
date for each DAG,
+serialize them and store them in the DB.
+
Review comment:
Should we add this to upgrade check?
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