[Storage] STG 103/104 Features

sdk/storage/azure-storage-blob/CHANGELOG.md

@@ -3,6 +3,15 @@
 ## 12.31.0b1 (Unreleased)
 
 ### Features Added
+- Added support for service version 2026-10-06.
+- Added access tier information to the response of `BlobClient`'s `download_blob` API.
+The `blob_tier`, `blob_tier_inferred`, `blob_tier_change_time`, and `smart_access_tier`
+properties are now populated on the downloaded blob's `properties`.
+- The service-calculated CRC64 is now surfaced as `content_crc64` on the response of
+`BlobClient` upload operations (`stage_block`, `stage_block_from_url`, `upload_page`,
+`upload_pages_from_url`, `append_block`, `append_block_from_url`, `upload_blob`, and
+`upload_blob_from_url`) in addition to `content_md5` when a content MD5 is
+provided with the request.
 
 ## 12.30.0 (2026-06-08)
 

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/aio/operations/_blob_operations.py

@@ -305,6 +305,16 @@ async def download(
             response_headers["x-ms-structured-content-length"] = self._deserialize(
                 "int", response.headers.get("x-ms-structured-content-length")
             )
+            response_headers["x-ms-access-tier"] = self._deserialize("str", response.headers.get("x-ms-access-tier"))
+            response_headers["x-ms-access-tier-inferred"] = self._deserialize(
+                "bool", response.headers.get("x-ms-access-tier-inferred")
+            )
+            response_headers["x-ms-access-tier-change-time"] = self._deserialize(
+                "rfc-1123", response.headers.get("x-ms-access-tier-change-time")
+            )
+            response_headers["x-ms-smart-access-tier"] = self._deserialize(
+                "str", response.headers.get("x-ms-smart-access-tier")
+            )
 
         if response.status_code == 206:
             response_headers["Last-Modified"] = self._deserialize("rfc-1123", response.headers.get("Last-Modified"))
@@ -393,6 +403,16 @@ async def download(
             response_headers["x-ms-structured-content-length"] = self._deserialize(
                 "int", response.headers.get("x-ms-structured-content-length")
             )
+            response_headers["x-ms-access-tier"] = self._deserialize("str", response.headers.get("x-ms-access-tier"))
+            response_headers["x-ms-access-tier-inferred"] = self._deserialize(
+                "bool", response.headers.get("x-ms-access-tier-inferred")
+            )
+            response_headers["x-ms-access-tier-change-time"] = self._deserialize(
+                "rfc-1123", response.headers.get("x-ms-access-tier-change-time")
+            )
+            response_headers["x-ms-smart-access-tier"] = self._deserialize(
+                "str", response.headers.get("x-ms-smart-access-tier")
+            )
 
         deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
 

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/aio/operations/_block_blob_operations.py

@@ -265,6 +265,9 @@ async def upload(  # pylint: disable=too-many-locals
         response_headers["ETag"] = self._deserialize("str", response.headers.get("ETag"))
         response_headers["Last-Modified"] = self._deserialize("rfc-1123", response.headers.get("Last-Modified"))
         response_headers["Content-MD5"] = self._deserialize("bytearray", response.headers.get("Content-MD5"))
+        response_headers["x-ms-content-crc64"] = self._deserialize(
+            "bytearray", response.headers.get("x-ms-content-crc64")
+        )
         response_headers["x-ms-client-request-id"] = self._deserialize(
             "str", response.headers.get("x-ms-client-request-id")
         )
@@ -522,6 +525,9 @@ async def put_blob_from_url(  # pylint: disable=too-many-locals
         response_headers["ETag"] = self._deserialize("str", response.headers.get("ETag"))
         response_headers["Last-Modified"] = self._deserialize("rfc-1123", response.headers.get("Last-Modified"))
         response_headers["Content-MD5"] = self._deserialize("bytearray", response.headers.get("Content-MD5"))
+        response_headers["x-ms-content-crc64"] = self._deserialize(
+            "bytearray", response.headers.get("x-ms-content-crc64")
+        )
         response_headers["x-ms-client-request-id"] = self._deserialize(
             "str", response.headers.get("x-ms-client-request-id")
         )

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/operations/_blob_operations.py

@@ -1775,6 +1775,16 @@ def download(
             response_headers["x-ms-structured-content-length"] = self._deserialize(
                 "int", response.headers.get("x-ms-structured-content-length")
             )
+            response_headers["x-ms-access-tier"] = self._deserialize("str", response.headers.get("x-ms-access-tier"))
+            response_headers["x-ms-access-tier-inferred"] = self._deserialize(
+                "bool", response.headers.get("x-ms-access-tier-inferred")
+            )
+            response_headers["x-ms-access-tier-change-time"] = self._deserialize(
+                "rfc-1123", response.headers.get("x-ms-access-tier-change-time")
+            )
+            response_headers["x-ms-smart-access-tier"] = self._deserialize(
+                "str", response.headers.get("x-ms-smart-access-tier")
+            )
 
         if response.status_code == 206:
             response_headers["Last-Modified"] = self._deserialize("rfc-1123", response.headers.get("Last-Modified"))
@@ -1863,6 +1873,16 @@ def download(
             response_headers["x-ms-structured-content-length"] = self._deserialize(
                 "int", response.headers.get("x-ms-structured-content-length")
             )
+            response_headers["x-ms-access-tier"] = self._deserialize("str", response.headers.get("x-ms-access-tier"))
+            response_headers["x-ms-access-tier-inferred"] = self._deserialize(
+                "bool", response.headers.get("x-ms-access-tier-inferred")
+            )
+            response_headers["x-ms-access-tier-change-time"] = self._deserialize(
+                "rfc-1123", response.headers.get("x-ms-access-tier-change-time")
+            )
+            response_headers["x-ms-smart-access-tier"] = self._deserialize(
+                "str", response.headers.get("x-ms-smart-access-tier")
+            )
 
         deserialized = response.stream_download(self._client._pipeline, decompress=_decompress)
 

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/operations/_block_blob_operations.py

@@ -924,6 +924,9 @@ def upload(  # pylint: disable=inconsistent-return-statements,too-many-locals
         response_headers["ETag"] = self._deserialize("str", response.headers.get("ETag"))
         response_headers["Last-Modified"] = self._deserialize("rfc-1123", response.headers.get("Last-Modified"))
         response_headers["Content-MD5"] = self._deserialize("bytearray", response.headers.get("Content-MD5"))
+        response_headers["x-ms-content-crc64"] = self._deserialize(
+            "bytearray", response.headers.get("x-ms-content-crc64")
+        )
         response_headers["x-ms-client-request-id"] = self._deserialize(
             "str", response.headers.get("x-ms-client-request-id")
         )
@@ -1181,6 +1184,9 @@ def put_blob_from_url(  # pylint: disable=inconsistent-return-statements,too-man
         response_headers["ETag"] = self._deserialize("str", response.headers.get("ETag"))
         response_headers["Last-Modified"] = self._deserialize("rfc-1123", response.headers.get("Last-Modified"))
         response_headers["Content-MD5"] = self._deserialize("bytearray", response.headers.get("Content-MD5"))
+        response_headers["x-ms-content-crc64"] = self._deserialize(
+            "bytearray", response.headers.get("x-ms-content-crc64")
+        )
         response_headers["x-ms-client-request-id"] = self._deserialize(
             "str", response.headers.get("x-ms-client-request-id")
         )

sdk/storage/azure-storage-blob/azure/storage/blob/_serialize.py

@@ -65,6 +65,7 @@
     "2026-02-06",
     "2026-04-06",
     "2026-06-06",
+    "2026-10-06",
 ]
 
 

sdk/storage/azure-storage-blob/tests/test_append_blob.py

@@ -279,6 +279,8 @@ def test_append_block_with_md5(self, **kwargs):
         assert resp["blob_committed_block_count"] == 1
         assert resp["etag"] is not None
         assert resp["last_modified"] is not None
+        assert resp["content_md5"] is not None
+        assert resp["content_crc64"] is not None
 
         # Assert
 
@@ -410,6 +412,8 @@ def test_append_block_from_url_and_validate_content_md5(self, **kwargs):
         assert resp.get("blob_committed_block_count") == 1
         assert resp.get("etag") is not None
         assert resp.get("last_modified") is not None
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
         # Assert the destination blob is constructed correctly
         destination_blob_properties = destination_blob_client.get_blob_properties()

sdk/storage/azure-storage-blob/tests/test_append_blob_async.py

@@ -301,6 +301,8 @@ async def test_append_block_with_md5(self, **kwargs):
         assert resp["blob_committed_block_count"] == 1
         assert resp["etag"] is not None
         assert resp["last_modified"] is not None
+        assert resp["content_md5"] is not None
+        assert resp["content_crc64"] is not None
 
         # Assert
 
@@ -409,6 +411,8 @@ async def test_append_block_from_url_and_validate_content_md5(self, **kwargs):
         assert resp.get("blob_committed_block_count") == 1
         assert resp.get("etag") is not None
         assert resp.get("last_modified") is not None
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
         # Assert the destination blob is constructed correctly
         destination_blob_properties = await destination_blob_client.get_blob_properties()

sdk/storage/azure-storage-blob/tests/test_block_blob.py

@@ -585,9 +585,11 @@ def test_upload_blob_from_url_with_source_content_md5(self, **kwargs):
         new_blob = self.bsc.get_blob_client(self.container_name, blob_name)
 
         # Assert
-        new_blob.upload_blob_from_url(
+        resp = new_blob.upload_blob_from_url(
             source_blob_url, include_source_blob_properties=True, source_content_md5=source_md5
         )
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
         with pytest.raises(HttpResponseError):
             new_blob.upload_blob_from_url(
                 source_blob_url, include_source_blob_properties=False, source_content_md5=bad_source_md5
@@ -718,9 +720,11 @@ def test_put_block_with_md5(self, **kwargs):
         blob = self._create_blob()
 
         # Act
-        blob.stage_block(1, b"block", validate_content=True)
+        resp = blob.stage_block(1, b"block", validate_content=True)
 
         # Assert
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
     @BlobPreparer()
     @recorded_by_proxy

sdk/storage/azure-storage-blob/tests/test_block_blob_async.py

@@ -618,9 +618,11 @@ async def test_upload_blob_from_url_with_source_content_md5(self, **kwargs):
         new_blob = self.bsc.get_blob_client(self.container_name, blob_name)
 
         # Assert
-        await new_blob.upload_blob_from_url(
+        resp = await new_blob.upload_blob_from_url(
             source_blob_url, include_source_blob_properties=True, source_content_md5=source_md5
         )
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
         with pytest.raises(HttpResponseError):
             await new_blob.upload_blob_from_url(
                 source_blob_url, include_source_blob_properties=False, source_content_md5=bad_source_md5
@@ -803,9 +805,11 @@ async def test_put_block_with_md5(self, **kwargs):
         blob = await self._create_blob()
 
         # Act
-        await blob.stage_block(1, b"block", validate_content=True)
+        resp = await blob.stage_block(1, b"block", validate_content=True)
 
         # Assert
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
     @BlobPreparer()
     @recorded_by_proxy_async

sdk/storage/azure-storage-blob/tests/test_block_blob_sync_copy.py

@@ -205,13 +205,15 @@ def test_put_block_from_url_and_validate_content_md5(self, **kwargs):
         src_md5 = calculate_content_md5(self.source_blob_data)
 
         # Act part 1: put block from url with md5 validation
-        dest_blob.stage_block_from_url(
+        resp = dest_blob.stage_block_from_url(
             block_id=1,
             source_url=self.source_blob_url,
             source_content_md5=src_md5,
             source_offset=0,
             source_length=8 * 1024,
         )
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
         # Assert block was staged
         committed, uncommitted = dest_blob.get_block_list("all")

sdk/storage/azure-storage-blob/tests/test_block_blob_sync_copy_async.py

@@ -167,13 +167,15 @@ async def test_put_block_from_url_and_vldte_content_md5(self, **kwargs):
         src_md5 = calculate_content_md5(self.source_blob_data)
 
         # Act part 1: put block from url with md5 validation
-        await dest_blob.stage_block_from_url(
+        resp = await dest_blob.stage_block_from_url(
             block_id=1,
             source_url=self.source_blob_url,
             source_content_md5=src_md5,
             source_offset=0,
             source_length=8 * 1024,
         )
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
         # Assert block was staged
         committed, uncommitted = await dest_blob.get_block_list("all")

sdk/storage/azure-storage-blob/tests/test_common_blob.py

@@ -970,7 +970,7 @@ def test_set_blob_metadata_with_upper_case(self, **kwargs):
         assert md["hello"] == "world"
         assert md["number"] == "42"
         assert md["UP"] == "UPval"
-        assert not "up" in md
+        assert "up" not in md
 
     @BlobPreparer()
     @recorded_by_proxy
@@ -995,7 +995,7 @@ def test_set_blob_metadata_with_if_tags(self, **kwargs):
         assert md["hello"] == "world"
         assert md["number"] == "42"
         assert md["UP"] == "UPval"
-        assert not "up" in md
+        assert "up" not in md
 
     @BlobPreparer()
     @recorded_by_proxy
@@ -1018,7 +1018,7 @@ def test_set_blob_metadata_returns_vid(self, **kwargs):
         assert md["hello"] == "world"
         assert md["number"] == "42"
         assert md["UP"] == "UPval"
-        assert not "up" in md
+        assert "up" not in md
 
     @BlobPreparer()
     @recorded_by_proxy
@@ -4000,4 +4000,24 @@ def test_blob_fns_directory_fail(self, **kwargs):
 
         return variables
 
+    @BlobPreparer()
+    @recorded_by_proxy
+    def test_download_blob_returns_access_tier(self, **kwargs):
+        storage_account_name = kwargs.pop("storage_account_name")
+        storage_account_key = kwargs.pop("storage_account_key")
+
+        self._setup(storage_account_name, storage_account_key)
+        blob = self.bsc.get_container_client(self.container_name).get_blob_client(self._get_blob_reference())
+        blob.upload_blob(b"hello world", overwrite=True)
+        blob.set_standard_blob_tier(StandardBlobTier.SMART)
+
+        # Act
+        downloader = blob.download_blob()
+
+        # Assert
+        assert StandardBlobTier.SMART == downloader.properties.blob_tier
+        assert downloader.properties.smart_access_tier is not None
+        assert downloader.properties.blob_tier_change_time is not None
+        assert not downloader.properties.blob_tier_inferred
+
     # ------------------------------------------------------------------------------

sdk/storage/azure-storage-blob/tests/test_common_blob_async.py

@@ -1210,7 +1210,7 @@ async def test_set_blob_metadata_with_upper_case(self, **kwargs):
         assert md["hello"] == "world"
         assert md["number"] == "42"
         assert md["UP"] == "UPval"
-        assert not "up" in md
+        assert "up" not in md
 
     @BlobPreparer()
     @recorded_by_proxy_async
@@ -1238,7 +1238,7 @@ async def test_set_blob_metadata_with_if_tags(self, **kwargs):
         assert md["hello"] == "world"
         assert md["number"] == "42"
         assert md["UP"] == "UPval"
-        assert not "up" in md
+        assert "up" not in md
 
     @BlobPreparer()
     @recorded_by_proxy_async
@@ -1262,7 +1262,7 @@ async def test_set_blob_metadata_returns_vid(self, **kwargs):
         assert md["hello"] == "world"
         assert md["number"] == "42"
         assert md["UP"] == "UPval"
-        assert not "up" in md
+        assert "up" not in md
 
     @BlobPreparer()
     @recorded_by_proxy_async
@@ -3908,5 +3908,25 @@ async def test_blob_fns_directory_fail(self, **kwargs):
 
         return variables
 
+    @BlobPreparer()
+    @recorded_by_proxy_async
+    async def test_download_blob_returns_access_tier(self, **kwargs):
+        storage_account_name = kwargs.pop("storage_account_name")
+        storage_account_key = kwargs.pop("storage_account_key")
+
+        await self._setup(storage_account_name, storage_account_key)
+        blob = self.bsc.get_container_client(self.container_name).get_blob_client(self._get_blob_reference())
+        await blob.upload_blob(b"hello world")
+        await blob.set_standard_blob_tier(StandardBlobTier.SMART)
+
+        # Act
+        downloader = await blob.download_blob()
+
+        # Assert
+        assert StandardBlobTier.SMART == downloader.properties.blob_tier
+        assert downloader.properties.smart_access_tier is not None
+        assert downloader.properties.blob_tier_change_time is not None
+        assert not downloader.properties.blob_tier_inferred
+
 
 # ------------------------------------------------------------------------------

sdk/storage/azure-storage-blob/tests/test_page_blob.py

@@ -417,9 +417,11 @@ def test_update_page_with_md5(self, **kwargs):
 
         # Act
         data = self.get_random_bytes(512)
-        blob.upload_page(data, offset=0, length=512, validate_content=True)
+        resp = blob.upload_page(data, offset=0, length=512, validate_content=True)
 
         # Assert
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
     @BlobPreparer()
     @recorded_by_proxy
@@ -752,6 +754,8 @@ def test_upload_pages_from_url_and_validate_content_md5(self, **kwargs):
         )
         assert resp.get("etag") is not None
         assert resp.get("last_modified") is not None
+        assert resp.get("content_md5") is not None
+        assert resp.get("content_crc64") is not None
 
         # Assert the destination blob is constructed correctly
         blob_properties = destination_blob_client.get_blob_properties()