[FLINK-40632][s3] Remove Experimental annotation from native-s3-fs

Author: Samrat002

docs/content.zh/docs/deployment/filesystems/s3.md

@@ -68,10 +68,10 @@ Note that these examples are *not* exhaustive and you can use S3 in other places
 
 Flink provides three independent S3 filesystem implementations:
 
-| Implementation | Checkpointing | FileSink | Notes |
-|---------------|:---:|:---:|-------|
-| **Native S3** (`flink-s3-fs-native`) | ✓ | ✓ | **Experimental** in Flink 2.3. Built on AWS SDK v2; no Hadoop dependency. |
-| **Presto S3** (`flink-s3-fs-presto`) | ✓ | x | Production-proven for checkpointing. |
+| Implementation | Checkpointing | FileSink | Notes                                                                                      |
+|---------------|:---:|:---:|--------------------------------------------------------------------------------------------|
+| **Native S3** (`flink-s3-fs-native`) | ✓ | ✓ | Built on AWS SDK v2; no Hadoop dependency. Generally available since Flink 2.4.            |
+| **Presto S3** (`flink-s3-fs-presto`) | ✓ | x | Production-proven for checkpointing.                                                       |
 | **Hadoop S3** (`flink-s3-fs-hadoop`) | ✓ | ✓ | Mature; the only stable implementation that provides `RecoverableWriter` for the FileSink. |
 
 Previously, users had to choose between Presto (recommended for checkpointing throughput) and Hadoop (the only implementation with `RecoverableWriter`, required by the [FileSink]({{< ref "docs/connectors/datastream/filesystem" >}})). The Native S3 implementation unifies both capabilities in a single plugin and measurements show significant checkpoint throughput improvements over the Presto implementation.
@@ -149,11 +149,7 @@ The legacy configuration key `s3.path.style.access` is still supported as a fall
 
 ## Implementation Details
 
-### Native S3 FileSystem (Experimental)
-
-{{< hint warning >}}
-**Experimental**: The Native S3 FileSystem is experimental in Flink 2.3. It is functionally complete and has demonstrated strong performance in benchmarks.
-{{< /hint >}}
+### Native S3 FileSystem
 
 The Native S3 FileSystem is a pure-Java implementation built on the AWS SDK v2 completely removing the dependency on Hadoop. It is registered under the schemes *s3://* and *s3a://*. It provides a drop-in replacement for the Presto and Hadoop implementations, supporting checkpointing, the [FileSink]({{< ref "docs/connectors/datastream/filesystem" >}}) (via `RecoverableWriter`), server-side encryption (SSE-S3, SSE-KMS), cross-account access via IAM role assumption, entropy injection, and bulk copy via S3TransferManager.
 

docs/content/docs/deployment/filesystems/s3.md

@@ -68,10 +68,10 @@ Note that these examples are *not* exhaustive and you can use S3 in other places
 
 Flink provides three independent S3 filesystem implementations:
 
-| Implementation | Checkpointing | FileSink | Notes |
-|---------------|:---:|:---:|-------|
-| **Native S3** (`flink-s3-fs-native`) | ✓ | ✓ | **Experimental** in Flink 2.3. Built on AWS SDK v2; no Hadoop dependency. |
-| **Presto S3** (`flink-s3-fs-presto`) | ✓ | x | Production-proven for checkpointing. |
+| Implementation | Checkpointing | FileSink | Notes                                                                                      |
+|---------------|:---:|:---:|--------------------------------------------------------------------------------------------|
+| **Native S3** (`flink-s3-fs-native`) | ✓ | ✓ | Built on AWS SDK v2; no Hadoop dependency. Generally available since Flink 2.4.            |
+| **Presto S3** (`flink-s3-fs-presto`) | ✓ | x | Production-proven for checkpointing.                                                       |
 | **Hadoop S3** (`flink-s3-fs-hadoop`) | ✓ | ✓ | Mature; the only stable implementation that provides `RecoverableWriter` for the FileSink. |
 
 Previously, users had to choose between Presto (recommended for checkpointing throughput) and Hadoop (the only implementation with `RecoverableWriter`, required by the [FileSink]({{< ref "docs/connectors/datastream/filesystem" >}})). The Native S3 implementation unifies both capabilities in a single plugin and measurements show significant checkpoint throughput improvements over the Presto implementation.
@@ -149,11 +149,7 @@ The legacy configuration key `s3.path.style.access` is still supported as a fall
 
 ## Implementation Details
 
-### Native S3 FileSystem (Experimental)
-
-{{< hint warning >}}
-**Experimental**: The Native S3 FileSystem is experimental in Flink 2.3. It is functionally complete and has demonstrated strong performance in benchmarks.
-{{< /hint >}}
+### Native S3 FileSystem
 
 The Native S3 FileSystem is a pure-Java implementation built on the AWS SDK v2 completely removing the dependency on Hadoop. It is registered under the schemes *s3://* and *s3a://*. It provides a drop-in replacement for the Presto and Hadoop implementations, supporting checkpointing, the [FileSink]({{< ref "docs/connectors/datastream/filesystem" >}}) (via `RecoverableWriter`), server-side encryption (SSE-S3, SSE-KMS), cross-account access via IAM role assumption, entropy injection, and bulk copy via S3TransferManager.
 

flink-filesystems/flink-s3-fs-native/src/main/java/org/apache/flink/fs/s3native/NativeS3AFileSystemFactory.java

@@ -18,8 +18,6 @@
 
 package org.apache.flink.fs.s3native;
 
-import org.apache.flink.annotation.Experimental;
-
 /**
  * Factory for the native S3 file system registered for the {@code s3a://} scheme.
  *
@@ -29,7 +27,6 @@
  * <p>All configuration options are the same as for the {@code s3://} scheme. See {@link
  * NativeS3FileSystemFactory} for available options.
  */
-@Experimental
 public class NativeS3AFileSystemFactory extends NativeS3FileSystemFactory {
 
     @Override

flink-filesystems/flink-s3-fs-native/src/main/java/org/apache/flink/fs/s3native/NativeS3FileSystemFactory.java

@@ -18,7 +18,6 @@
 
 package org.apache.flink.fs.s3native;
 
-import org.apache.flink.annotation.Experimental;
 import org.apache.flink.configuration.ConfigOption;
 import org.apache.flink.configuration.ConfigOptions;
 import org.apache.flink.configuration.Configuration;
@@ -61,7 +60,6 @@
  * @see NativeS3FileSystem
  * @see org.apache.flink.core.fs.FileSystemFactory
  */
-@Experimental
 public class NativeS3FileSystemFactory implements FileSystemFactory, MetricsAware {
 
     private static final Logger LOG = LoggerFactory.getLogger(NativeS3FileSystemFactory.class);

flink-filesystems/flink-s3-fs-native/src/main/java/org/apache/flink/fs/s3native/writer/NativeS3RecoverableWriter.java

@@ -18,7 +18,6 @@
 
 package org.apache.flink.fs.s3native.writer;
 
-import org.apache.flink.annotation.Experimental;
 import org.apache.flink.core.fs.Path;
 import org.apache.flink.core.fs.RecoverableFsDataOutputStream;
 import org.apache.flink.core.fs.RecoverableWriter;
@@ -36,7 +35,6 @@
 import static org.apache.flink.util.Preconditions.checkNotNull;
 
 /** Recoverable writer for S3 using multipart uploads for exactly-once semantics. */
-@Experimental
 public class NativeS3RecoverableWriter implements RecoverableWriter, AutoCloseable {
 
     private static final Logger LOG = LoggerFactory.getLogger(NativeS3RecoverableWriter.class);