[Storage] [STG 101] Delete Blob Conditional Access Tier

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

@@ -4,6 +4,8 @@
 
 ### Features Added
 - Added support for service version 2026-04-06.
+- Added support for the keywords `access_tier_if_modified_since` and `access_tier_if_unmodified_since` to
+conditionally perform `BlobClient.delete_blob` operation.
 
 ## 12.28.0b1 (Unreleased)
 

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

@@ -932,6 +932,18 @@ def delete_blob(self, delete_snapshots: Optional[str] = None, **kwargs: Any) ->
 
             .. versionadded:: 12.4.0
 
+        :keyword ~datetime.datetime access_tier_if_modified_since:
+            A DateTime value. Azure expects the date value passed in to be UTC.
+            If timezone is included, any non-UTC datetimes will be converted to UTC.
+            If a date is passed in without timezone info, it is assumed to be UTC.
+            Specify this header to perform the operation only if
+            the access-tier has been modified since the specified date/time.
+        :keyword ~datetime.datetime access_tier_if_unmodified_since:
+            A DateTime value. Azure expects the date value passed in to be UTC.
+            If timezone is included, any non-UTC datetimes will be converted to UTC.
+            If a date is passed in without timezone info, it is assumed to be UTC.
+            Specify this header to perform the operation only if
+            the access-tier has been modified since the specified date/time.
         :keyword int timeout:
             Sets the server-side timeout for the operation in seconds. For more details see
             https://learn.microsoft.com/rest/api/storageservices/setting-timeouts-for-blob-service-operations.
@@ -954,7 +966,8 @@ def delete_blob(self, delete_snapshots: Optional[str] = None, **kwargs: Any) ->
             snapshot=self.snapshot,
             version_id=get_version_id(self.version_id, kwargs),
             delete_snapshots=delete_snapshots,
-            **kwargs)
+            **kwargs
+        )
         try:
             self._client.blob.delete(**options)
         except HttpResponseError as error:

sdk/storage/azure-storage-blob/azure/storage/blob/_blob_client.pyi

@@ -287,6 +287,8 @@ class BlobClient(StorageAccountHostsMixin, StorageEncryptionMixin):
         etag: Optional[str] = None,
         match_condition: Optional[MatchConditions] = None,
         if_tags_match_condition: Optional[str] = None,
+        access_tier_if_modified_since: Optional[datetime] = None,
+        access_tier_if_unmodified_since: Optional[datetime] = None,
         timeout: Optional[int] = None,
         **kwargs: Any
     ) -> None: ...

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

@@ -393,7 +393,8 @@ def _generic_delete_blob_options(delete_snapshots: Optional[str] = None, **kwarg
         'snapshot': kwargs.pop('snapshot', None),  # this is added for delete_blobs
         'delete_snapshots': delete_snapshots or None,
         'lease_access_conditions': access_conditions,
-        'modified_access_conditions': mod_conditions}
+        'modified_access_conditions': mod_conditions
+    }
     options.update(kwargs)
     return options
 

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/_azure_blob_storage.py

@@ -48,7 +48,7 @@ class AzureBlobStorage:  # pylint: disable=client-accepts-api-version-keyword
     :param base_url: Service URL. Required. Default value is "".
     :type base_url: str
     :keyword version: Specifies the version of the operation to use for this request. Default value
-     is "2026-02-06". Note that overriding this default value may result in unsupported behavior.
+     is "2026-04-06". Note that overriding this default value may result in unsupported behavior.
     :paramtype version: str
     """
 

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/_configuration.py

@@ -23,12 +23,12 @@ class AzureBlobStorageConfiguration:  # pylint: disable=too-many-instance-attrib
      desired operation. Required.
     :type url: str
     :keyword version: Specifies the version of the operation to use for this request. Default value
-     is "2026-02-06". Note that overriding this default value may result in unsupported behavior.
+     is "2026-04-06". Note that overriding this default value may result in unsupported behavior.
     :paramtype version: str
     """
 
     def __init__(self, url: str, **kwargs: Any) -> None:
-        version: Literal["2026-02-06"] = kwargs.pop("version", "2026-02-06")
+        version: Literal["2026-04-06"] = kwargs.pop("version", "2026-04-06")
 
         if url is None:
             raise ValueError("Parameter 'url' must not be None.")

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/_utils/serialization.py

@@ -21,7 +21,6 @@
 import sys
 import codecs
 from typing import (
-    Dict,
     Any,
     cast,
     Optional,
@@ -31,7 +30,6 @@
     Mapping,
     Callable,
     MutableMapping,
-    List,
 )
 
 try:
@@ -229,12 +227,12 @@ class Model:
     serialization and deserialization.
     """
 
-    _subtype_map: Dict[str, Dict[str, Any]] = {}
-    _attribute_map: Dict[str, Dict[str, Any]] = {}
-    _validation: Dict[str, Dict[str, Any]] = {}
+    _subtype_map: dict[str, dict[str, Any]] = {}
+    _attribute_map: dict[str, dict[str, Any]] = {}
+    _validation: dict[str, dict[str, Any]] = {}
 
     def __init__(self, **kwargs: Any) -> None:
-        self.additional_properties: Optional[Dict[str, Any]] = {}
+        self.additional_properties: Optional[dict[str, Any]] = {}
         for k in kwargs:  # pylint: disable=consider-using-dict-items
             if k not in self._attribute_map:
                 _LOGGER.warning("%s is not a known attribute of class %s and will be ignored", k, self.__class__)
@@ -311,7 +309,7 @@ def serialize(self, keep_readonly: bool = False, **kwargs: Any) -> JSON:
     def as_dict(
         self,
         keep_readonly: bool = True,
-        key_transformer: Callable[[str, Dict[str, Any], Any], Any] = attribute_transformer,
+        key_transformer: Callable[[str, dict[str, Any], Any], Any] = attribute_transformer,
         **kwargs: Any
     ) -> JSON:
         """Return a dict that can be serialized using json.dump.
@@ -380,7 +378,7 @@ def deserialize(cls, data: Any, content_type: Optional[str] = None) -> Self:
     def from_dict(
         cls,
         data: Any,
-        key_extractors: Optional[Callable[[str, Dict[str, Any], Any], Any]] = None,
+        key_extractors: Optional[Callable[[str, dict[str, Any], Any], Any]] = None,
         content_type: Optional[str] = None,
     ) -> Self:
         """Parse a dict using given key extractor return a model.
@@ -414,7 +412,7 @@ def _flatten_subtype(cls, key, objects):
             return {}
         result = dict(cls._subtype_map[key])
         for valuetype in cls._subtype_map[key].values():
-            result.update(objects[valuetype]._flatten_subtype(key, objects))  # pylint: disable=protected-access
+            result |= objects[valuetype]._flatten_subtype(key, objects)  # pylint: disable=protected-access
         return result
 
     @classmethod
@@ -528,7 +526,7 @@ def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
             "[]": self.serialize_iter,
             "{}": self.serialize_dict,
         }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
+        self.dependencies: dict[str, type] = dict(classes) if classes else {}
         self.key_transformer = full_restapi_key_transformer
         self.client_side_validation = True
 
@@ -579,7 +577,7 @@ def _serialize(  # pylint: disable=too-many-nested-blocks, too-many-branches, to
 
                 if attr_name == "additional_properties" and attr_desc["key"] == "":
                     if target_obj.additional_properties is not None:
-                        serialized.update(target_obj.additional_properties)
+                        serialized |= target_obj.additional_properties
                     continue
                 try:
 
@@ -789,7 +787,7 @@ def serialize_data(self, data, data_type, **kwargs):
 
             # If dependencies is empty, try with current data class
             # It has to be a subclass of Enum anyway
-            enum_type = self.dependencies.get(data_type, data.__class__)
+            enum_type = self.dependencies.get(data_type, cast(type, data.__class__))
             if issubclass(enum_type, Enum):
                 return Serializer.serialize_enum(data, enum_obj=enum_type)
 
@@ -1184,7 +1182,7 @@ def rest_key_extractor(attr, attr_desc, data):  # pylint: disable=unused-argumen
 
     while "." in key:
         # Need the cast, as for some reasons "split" is typed as list[str | Any]
-        dict_keys = cast(List[str], _FLATTEN.split(key))
+        dict_keys = cast(list[str], _FLATTEN.split(key))
         if len(dict_keys) == 1:
             key = _decode_attribute_map_key(dict_keys[0])
             break
@@ -1386,7 +1384,7 @@ def __init__(self, classes: Optional[Mapping[str, type]] = None) -> None:
             "duration": (isodate.Duration, datetime.timedelta),
             "iso-8601": (datetime.datetime),
         }
-        self.dependencies: Dict[str, type] = dict(classes) if classes else {}
+        self.dependencies: dict[str, type] = dict(classes) if classes else {}
         self.key_extractors = [rest_key_extractor, xml_key_extractor]
         # Additional properties only works if the "rest_key_extractor" is used to
         # extract the keys. Making it to work whatever the key extractor is too much

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/aio/_azure_blob_storage.py

@@ -48,7 +48,7 @@ class AzureBlobStorage:  # pylint: disable=client-accepts-api-version-keyword
     :param base_url: Service URL. Required. Default value is "".
     :type base_url: str
     :keyword version: Specifies the version of the operation to use for this request. Default value
-     is "2026-02-06". Note that overriding this default value may result in unsupported behavior.
+     is "2026-04-06". Note that overriding this default value may result in unsupported behavior.
     :paramtype version: str
     """
 

sdk/storage/azure-storage-blob/azure/storage/blob/_generated/aio/_configuration.py

@@ -23,12 +23,12 @@ class AzureBlobStorageConfiguration:  # pylint: disable=too-many-instance-attrib
      desired operation. Required.
     :type url: str
     :keyword version: Specifies the version of the operation to use for this request. Default value
-     is "2026-02-06". Note that overriding this default value may result in unsupported behavior.
+     is "2026-04-06". Note that overriding this default value may result in unsupported behavior.
     :paramtype version: str
     """
 
     def __init__(self, url: str, **kwargs: Any) -> None:
-        version: Literal["2026-02-06"] = kwargs.pop("version", "2026-02-06")
+        version: Literal["2026-04-06"] = kwargs.pop("version", "2026-04-06")
 
         if url is None:
             raise ValueError("Parameter 'url' must not be None.")

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

@@ -8,7 +8,7 @@
 # --------------------------------------------------------------------------
 from collections.abc import MutableMapping
 import datetime
-from typing import Any, Callable, Dict, IO, Literal, Optional, TypeVar, Union
+from typing import Any, Callable, IO, Literal, Optional, TypeVar, Union
 
 from azure.core import AsyncPipelineClient
 from azure.core.exceptions import (
@@ -35,7 +35,7 @@
 from .._configuration import AzureBlobStorageConfiguration
 
 T = TypeVar("T")
-ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
+ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, dict[str, Any]], Any]]
 
 
 class AppendBlobOperations:
@@ -62,7 +62,7 @@ async def create(
         self,
         content_length: int,
         timeout: Optional[int] = None,
-        metadata: Optional[Dict[str, str]] = None,
+        metadata: Optional[dict[str, str]] = None,
         request_id_parameter: Optional[str] = None,
         blob_tags_string: Optional[str] = None,
         immutability_policy_expiry: Optional[datetime.datetime] = None,
@@ -215,7 +215,10 @@ async def create(
 
         if response.status_code not in [201]:
             map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.StorageError, pipeline_response)
+            error = self._deserialize.failsafe_deserialize(
+                _models.StorageError,
+                pipeline_response,
+            )
             raise HttpResponseError(response=response, model=error)
 
         response_headers = {}
@@ -390,7 +393,10 @@ async def append_block(
 
         if response.status_code not in [201]:
             map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.StorageError, pipeline_response)
+            error = self._deserialize.failsafe_deserialize(
+                _models.StorageError,
+                pipeline_response,
+            )
             raise HttpResponseError(response=response, model=error)
 
         response_headers = {}
@@ -598,7 +604,10 @@ async def append_block_from_url(
 
         if response.status_code not in [201]:
             map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.StorageError, pipeline_response)
+            error = self._deserialize.failsafe_deserialize(
+                _models.StorageError,
+                pipeline_response,
+            )
             raise HttpResponseError(response=response, model=error)
 
         response_headers = {}
@@ -719,7 +728,10 @@ async def seal(
 
         if response.status_code not in [200]:
             map_error(status_code=response.status_code, response=response, error_map=error_map)
-            error = self._deserialize.failsafe_deserialize(_models.StorageError, pipeline_response)
+            error = self._deserialize.failsafe_deserialize(
+                _models.StorageError,
+                pipeline_response,
+            )
             raise HttpResponseError(response=response, model=error)
 
         response_headers = {}