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risingwavelabs · Dec 12, 2024 · b50de8d · b50de8d
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diff --git a/delivery/overview.mdx b/delivery/overview.mdx
@@ -133,6 +133,10 @@ File sink currently supports only append-only mode, so please change the query t
 
 ## Batching strategy for file sink
 
+<Note>
+Batching strategy for file sink is newly introduced in version 2.1 and is not supported in versions prior to 2.1. If you want to use it, please upgrade to version 2.1.
+</Note>
+
 RisingWave implements batching strategies for file sinks to optimize file management by preventing the generation of numerous small files. The batching strategy is available for Parquet, JSON, and CSV encode. 
 
 ### Category

diff --git a/ingestion/overview.mdx b/ingestion/overview.mdx
@@ -132,6 +132,10 @@ RisingWave supports reading data from file sources including AWS S3, GCS, and Az
 
 ### Batch reading from file source
 
+<Note>
+Batch reading from file source is newly introduced in version 2.1 and is not supported in versions prior to 2.1. If you want to use it, please upgrade to version 2.1.
+</Note>
+
 To read data in batch from file sources, you need to create a materialized view from the source or create a table with the appropriate connector. You can also directly query the file source. Below are examples using AWS S3.
 
 ```sql
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     ### Batch reading from file source
+    <Note>
+    Batch reading from file source is newly introduced in version 2.1 and is not supported in versions prior to 2.1. If you want to use it, please upgrade to version 2.1.
+    </Note>
     To read data in batch from file sources, you need to create a materialized view from the source or create a table with the appropriate connector. You can also directly query the file source. Below are examples using AWS S3.
     ```sql
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