diff --git a/sdk/storage/azure-storage-blob/azure/storage/blob/_container_client.py b/sdk/storage/azure-storage-blob/azure/storage/blob/_container_client.py
index 8b0a96ba55f..904abe0db75 100644
--- a/sdk/storage/azure-storage-blob/azure/storage/blob/_container_client.py
+++ b/sdk/storage/azure-storage-blob/azure/storage/blob/_container_client.py
@@ -1042,6 +1042,13 @@ def download_blob(self, blob, offset=None, length=None, **kwargs):
         :param int length:
             Number of bytes to read from the stream. This is optional, but
             should be supplied for optimal performance.
+        :keyword str version_id:
+            The version id parameter is an opaque DateTime
+            value that, when present, specifies the version of the blob to download.
+
+            .. versionadded:: 12.4.0
+            This keyword argument was introduced in API version '2019-12-12'.
+
         :keyword bool validate_content:
             If true, calculates an MD5 hash for each chunk of the blob. The storage
             service checks the hash of the content that has arrived with the hash
@@ -1232,6 +1239,8 @@ def delete_blobs(self, *blobs, **kwargs):
         Soft deleted blobs or snapshots are accessible through :func:`list_blobs()` specifying `include=["deleted"]`
         Soft-deleted blobs or snapshots can be restored using :func:`~BlobClient.undelete()`
 
+        The maximum number of blobs that can be deleted in a single request is 256.
+
         :param blobs:
             The blobs to delete. This can be a single blob, or multiple values can
             be supplied, where each value is either the name of the blob (str) or BlobProperties.
@@ -1406,6 +1415,8 @@ def set_standard_blob_tier_blobs(
         A block blob's tier determines Hot/Cool/Archive storage type.
         This operation does not update the blob's ETag.
 
+        The maximum number of blobs that can be updated in a single request is 256.
+
         :param standard_blob_tier:
             Indicates the tier to be set on all blobs. Options include 'Hot', 'Cool',
             'Archive'. The hot tier is optimized for storing data that is accessed
@@ -1474,6 +1485,8 @@ def set_premium_page_blob_tier_blobs(
         # type: (...) -> Iterator[HttpResponse]
         """Sets the page blob tiers on all blobs. This API is only supported for page blobs on premium accounts.
 
+        The maximum number of blobs that can be updated in a single request is 256.
+
         :param premium_page_blob_tier:
             A page blob tier value to set the blob to. The tier correlates to the size of the
             blob and number of allowed IOPS. This is only applicable to page blobs on
diff --git a/sdk/storage/azure-storage-blob/azure/storage/blob/aio/_container_client_async.py b/sdk/storage/azure-storage-blob/azure/storage/blob/aio/_container_client_async.py
index 7fff6e3bbc2..31dd71d367f 100644
--- a/sdk/storage/azure-storage-blob/azure/storage/blob/aio/_container_client_async.py
+++ b/sdk/storage/azure-storage-blob/azure/storage/blob/aio/_container_client_async.py
@@ -902,6 +902,13 @@ async def download_blob(self, blob, offset=None, length=None, **kwargs):
         :param int length:
             Number of bytes to read from the stream. This is optional, but
             should be supplied for optimal performance.
+        :keyword str version_id:
+            The version id parameter is an opaque DateTime
+            value that, when present, specifies the version of the blob to download.
+
+            .. versionadded:: 12.4.0
+            This keyword argument was introduced in API version '2019-12-12'.
+
         :keyword bool validate_content:
             If true, calculates an MD5 hash for each chunk of the blob. The storage
             service checks the hash of the content that has arrived with the hash
@@ -979,6 +986,8 @@ async def delete_blobs(  # pylint: disable=arguments-differ
         Soft deleted blobs or snapshots are accessible through :func:`list_blobs()` specifying `include=["deleted"]`
         Soft-deleted blobs or snapshots can be restored using :func:`~BlobClient.undelete()`
 
+        The maximum number of blobs that can be deleted in a single request is 256.
+
         :param blobs:
             The blobs to delete. This can be a single blob, or multiple values can
             be supplied, where each value is either the name of the blob (str) or BlobProperties.
@@ -1065,6 +1074,8 @@ async def set_standard_blob_tier_blobs(
         A block blob's tier determines Hot/Cool/Archive storage type.
         This operation does not update the blob's ETag.
 
+        The maximum number of blobs that can be updated in a single request is 256.
+
         :param standard_blob_tier:
             Indicates the tier to be set on all blobs. Options include 'Hot', 'Cool',
             'Archive'. The hot tier is optimized for storing data that is accessed
@@ -1128,6 +1139,8 @@ async def set_premium_page_blob_tier_blobs(
     ) -> AsyncIterator[AsyncHttpResponse]:
         """Sets the page blob tiers on the blobs. This API is only supported for page blobs on premium accounts.
 
+        The maximum number of blobs that can be updated in a single request is 256.
+
         :param premium_page_blob_tier:
             A page blob tier value to set on all blobs to. The tier correlates to the size of the
             blob and number of allowed IOPS. This is only applicable to page blobs on