Hello PP007,
You don't need to take any action if you are using the dataflows and your understanding is correct.
The notification you have received only applies to "Apache Spark pools in the synapse."
The pipelines/data flows will automatically adapt to the Spark version change without any action required from your end.
For Apache Spark Pools:
To update the runtime in the spark pool, you can use the PS command: Update-AzSynapseSparkPool
From the document:
On 29 September 2023, Azure Synapse runtime for Apache Spark 2.4 will be retired in accordance with the Synapse runtime for Apache Spark lifecycle policy, and any workloads still using it will stop running. Before that date, you'll need to transition your workloads to version 3.2 or 3.3.
I hope this helps.
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